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Shungo

Shungo Fujita, Tokyo JP

Patent application numberDescriptionPublished
20100224296PNEUMATIC TIRE - There is provided a pneumatic tire sufficiently improving drainage performance, driving stability, uneven wear resistance and quiet performance. A pneumatic tire 09-09-2010
20120018068PNEUMATIC TIRE - A pneumatic tire which comprises a land portion (01-26-2012

Shungo Fujita, Kunitachi-Shi JP

Patent application numberDescriptionPublished
20100206445PNEUMATIC TIRE - A pneumatic tire comprises a tread provided with at least two circumferential main grooves and a rib defined in a tread central portion by the circumferential main grooves, wherein an auxiliary groove is formed in the tread central portion, the auxiliary groove having a circumferential groove portion extending in a tire equator direction and an axial groove portion extending from an end of the circumferential groove portion in such a manner that the axial groove portion is bent at an acute angle to the circumferential groove portion, and at least an end of the auxiliary groove is open into the circumferential main groove.08-19-2010

Shungo Fujita, Kokubunji-Shi JP

Patent application numberDescriptionPublished
20130020002TIRE - In a pneumatic tire 01-24-2013

Shungo Fukumoto, Tajimi-Shi JP

Patent application numberDescriptionPublished
20090130537Fuel cell separator, method of manufacturing fuel cell separator, and fuel cell - A gas-impermeable fuel cell separator including ribs that form a gas flow passage, and a sealing section, wherein at least the gas flow passage has a hydrophilically treated surface, and in which the fuel cell separator base material is exposed within the sealing section.05-21-2009

Shungo Hanashiro, Kanagawa JP

Patent application numberDescriptionPublished
20110215488LENS FORMING METAL MOLD, LENS FORMING METHOD AND PICKUP DEVICE - A metal mold including: a first inner metal mold which forms a first lens surface and a first flat surface portion of a lens; a first outer metal mold which forms a second flat surface portion; a second inner metal mold which forms a second lens surface and a third flat surface portion; and a second outer metal mold which forms a fourth flat surface portion, and wherein a first protruded portion which forms a first concaved portion on the lens is formed all around an outer periphery of the first inner metal mold, the first concaved portion serving as clearance for a burr, and a second protruded portion which forms a second concaved portion on the lens is formed all around an outer periphery of the second inner metal mold, the second concaved portion serving as clearance for a burr.09-08-2011
20110215489LENS FORMING METAL MOLD, LENS FORMING METHOD, LENS, AND PICKUP DEVICE - A lens forming metal mold comprising: a first metal mold portion that forms a first lens surface of a lens; and a second metal mold portion that forms a second lens surface of the lens. An air vent groove is formed on at least one contacting surface of a contacting surface of the first metal mold portion contacting with the second metal mold portion and a contacting surface of the second metal mold portion contacting with the first metal mold portion. A convex surface serving to form a concaved portion on the lens for accommodating a burr caused by the air vent groove is formed at least around the air vent groove on an outer circumference forming surface of the at least one contacting surface on which the air vent groove is formed, the outer circumference forming surface serving to from a tubular surface of the lens.09-08-2011
20110255178LENS FOR OPTICAL PICK-UP AND OPTICAL PICK-UP FOR OPTICAL DISC DRIVE - A lens for an optical pick-up formed by injection molding, the lens including a lens body having a first surface on an optical disc side and a second surface on a light source side, and a flange part formed to protrude from a periphery of the lens body outward in a radial direction of the lens body, and wherein a part of the flange part has been cut off along a cylindrical outer circumferential surface of the flange part to remove a gate part of the lens, and when D denotes a cutting depth of the flange part, R denotes a radius of the lens and W10-20-2011
20110299377LENS AND OPTICAL PICK-UP - A lens including: a lens body having first and second surfaces; a flange part formed to protrude from a periphery of the lens body and to have a cylindrical outer circumferential surface; a lens installation surface formed at an outer edge part of the flange part; a recessed part formed as a part of the flange part such that a part of the cylindrical outer circumferential surface is recessed toward the optical axis; and a gate root part located at a central part of the recessed part. The gate root part has a flat surface which is in a same level with respect to the lens installation surface. The gate root part lies on an optical axis side with respect to a virtual curved surface formed by extending the cylindrical outer circumferential surface through the recessed part.12-08-2011

Shungo Kanai, Omihachiman-Shi JP

Patent application numberDescriptionPublished
20090142209Piezoelectric Pump - A piezoelectric pump capable of generating a large displacement at a central portion of a piezoelectric element even when a driving voltage is relatively low and preventing short-circuits caused by migration. The piezoelectric pump includes a pump body with a pump chamber, and a piezoelectric element that closes the pump chamber. The central area and the peripheral area of the piezoelectric element are bent in opposite directions by applying voltages to the piezoelectric element so that the volume of the pump chamber is changed. The piezoelectric element is a laminate including a plurality of piezoelectric layers with electrodes interposed therebetween. The central area and the peripheral area of each piezoelectric layer are polarized opposite to each other in the thickness direction, and the electrodes are formed such that voltages in the same direction in the thickness direction are applied to the central area and the peripheral area of each piezoelectric layer. Since voltages at the same potential are applied to the electrodes formed in the same planes of the piezoelectric layers, short-circuits caused by migration can be prevented.06-04-2009
20090232682PIEZOELECTRIC MICRO-BLOWER - A piezoelectric micro-blower capable of efficiently conveying compressive fluid without use of a check valve and ensuring a sufficient flow rate. The micro-blower has a blower body with a first wall and a second wall. Openings are formed in the respective walls and face a center of a diaphragm. An inflow path allowing the openings to communicate with the outside is formed between the walls. By applying a voltage to a piezoelectric element to cause the diaphragm to vibrate, a part of the first wall close to the first opening vibrates. Thus, gas can be drawn from the inflow path and discharged from the opening in the second wall.09-17-2009
20090232683PIEZOELECTRIC MICRO-BLOWER - A piezoelectric micro-blower capable of efficiently conveying compressive fluid without use of a check valve and ensuring a sufficient flow rate. The micro-blower has a blower body with a first wall and a second wall. Openings are formed in the respective walls and face a center of a diaphragm. An inflow path allowing the openings to communicate with the outside is formed between the walls. By applying a voltage to a piezoelectric element to cause the diaphragm to vibrate, a part of the first wall close to the first opening vibrates. Thus, gas can be drawn from the inflow path and discharged from the opening in the second wall.09-17-2009
20090242813Piezoelectric Valve - A piezoelectric valve includes a valve body having a valve chamber and a piezoelectric element that is bent and displaced by application of a voltage thereto and thereby opening and closing a channel opening. The piezoelectric element is a rectangular shape, and both ends thereof in the length direction are fixedly held by the valve body. The piezoelectric element has a first region in a central part and a second region adjacent to both ends thereof. The first region and the second region are bent and displaced oppositely by application of a voltage thereto such that the central part of the piezoelectric element opens and closes the channel opening.10-01-2009

Shungo Kanai, Nagaokakyo-Shi JP

Patent application numberDescriptionPublished
20110070109PIEZOELECTRIC MICROBLOWER - A piezoelectric microblower includes a vibrating plate including a piezoelectric element and arranged to be driven in a bending mode by applying a voltage of a predetermined frequency to the piezoelectric element, and a blower body arranged to fix both ends or a periphery of the vibrating plate and to define a blower chamber between the blower body and the vibrating plate, an opening being provided in a portion of the blower body facing a central portion of the vibrating plate. In a portion of the blower chamber corresponding to the central portion of the vibrating plate, a partition is provided around the opening and a resonance space is defined inside of the partition. A size of the resonance space is set such that a driving frequency of the vibrating plate and a Helmholtz resonance frequency of the resonance space correspond to each other.03-24-2011
20120195774PIEZOELECTRIC MICRO-BLOWER - In a piezoelectric micro-blower, a vibration plate assembly includes a piezoelectric element attached to a diaphragm, with an intermediate plate interposed there between. A blower chamber plate includes a circular opening in a center thereof. A blower chamber defined by the diaphragm, a flow path plate, and the opening of the blower chamber plate is sized to allow internal pressure to be substantially uniformly changed by vibration of the diaphragm. The blower chamber plate and the flow path plate are provided with a first outlet and a second outlet, respectively. Compressive fluid pressurized in the blower chamber is blown out through the first and second outlets.08-02-2012

Shungo Kanai, Oumihachiman-Shi JP

Patent application numberDescriptionPublished
20080290759PIEZOELECTRIC VIBRATOR - An energy-trapping strip piezoelectric vibrator utilizing a third harmonic overtone of a thickness shear mode is provided. A piezoelectric vibrator 11-27-2008
20090214362PIEZOELECTRIC PUMP - A piezoelectric pump includes a diaphragm that defines a pump chamber between the diaphragm and a pump body, and a piezoelectric element bonded to a surface of the diaphragm. The piezoelectric element is a bimorph piezoelectric element in which a plurality of piezoelectric layers are stacked, including a neutral layer disposed in the approximate middle of the piezoelectric element in the thickness direction and that is not displaced. The piezoelectric element can be efficiently displaced because a neutral plane of the diaphragm and the piezoelectric element bonded therein is located in the neutral layer.08-27-2009

Shungo Kuwatani, Tokyo JP

Patent application numberDescriptionPublished
20100207050DRYING DEVICE AND METHOD OF AQUEOUS MOISTURE GEL - The formation of cracks is suppressed in a drying process for a water-containing wet gel without modifying the gel and without using a reagent. A water-containing wet gel is dried by removing water and then removing the remaining solvent. For example, a wet-gel container storing water-containing wet gel, containing a wet gel and a solvent, is heated. The solvent is vaporized into an upper space of the wet-gel container. The solvent-containing gas diffuses into a dehydrating agent container, and water is removed by a dehydrating agent. This state is maintained for one to two days to remove almost all amount of water from the solvent. Thereafter, the dehydrating agent container is detached and the wet gel, from which water has been removed, is heated to almost completely remove the solvent, and further heated at a higher temperature to completely remove the solvent to obtain a crack-free dry gel.08-19-2010

Shungo Tamura, Okazaki-Shi JP

Patent application numberDescriptionPublished
20090302818Power Supply Device and Control Method of the Same - It is determined that a periodic zero current stagnation state is reached to correct a voltage command of a smoothing capacitor downward by a predetermined voltage when a state where a current (reactor current) flowing through a coil in a dead time when switching elements are both off immediately after the switching element (upper arm) is turned off from on stagnates at a value of 0 occurs at switching periods of the switching elements. This can prevent a voltage of the smoothing capacitor from becoming unexpectedly higher than the voltage command in the current stagnation state, prevent the smoothing capacitor from being damaged by an overvoltage and prevent excessive torque from being output from motors.12-10-2009

Shungo Yoshino, Hyogo-Ken JP

Patent application numberDescriptionPublished
20090215372Coin Sorting Device - A downstream side of a chute (08-27-2009