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Hakuta, JP
Hiroshi Hakuta, Takaoka-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100286398 | METHOD FOR PRODUCING CIS-3-SUBSTITUTED-3-AZABICYCLO[3.2.1]OCTAN-8-OL DERIVATIVE - There are provided, according to the present invention, a method for producing a cis-3-substituted-3-azabicyclo[3.2.1]octan-8-ol derivative, the method characterized in that a trans-3-substituted-3-azabicyclo[3.2.1]octan-8-ol derivative or a mixture of the trans- and cis-3-substituted-3-azabicyclo[3.2.1]octan-8-ol derivatives is isomerized in the presence of an aluminum compound represented by a formula Al(OR | 11-11-2010 |
Keisuke Hakuta, Sagamihara JP
| Patent application number | Description | Published |
|---|---|---|
| 20090199010 | SIGNATURE DEVICE, VERIFICATION DEVICE, PROGRAM, SIGNATURE METHOD, VERIFICATION METHOD, AND SYSTEM - An efficient signature technology is provided, which is capable of arbitrary extraction and storage from a plurality of pieces of data and which can make a signature length relatively short. In a signature device ( | 08-06-2009 |
| 20120099725 | METHOD OF GENERATING ID WITH GUARANTEED VALIDITY, AND VALIDITY LEGITIMACY GUARANTYING RFID TAG - A portion of a digital signature value for authenticating the validity of ID information is also used as an ID so as to reduce the amount of data. This is achieved by using a digital signature scheme with a short signature length obtained by transforming a Schnorr signature, which is a typical example of a digital signature scheme. | 04-26-2012 |
Keisuke Hakuta, Kawasaki JP
| Patent application number | Description | Published |
|---|---|---|
| 20080320557 | BATCH VERIFICATION DEVICE, PROGRAM AND BATCH VERIFICATION METHOD - Realization of batch verification having both high security and high efficiency. | 12-25-2008 |
Kohzo Hakuta, Chofu-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20120121221 | OPTICAL NANOFIBER RESONATOR - To provide an optical nanofiber resonator having an optical waveguide whose diameter is equal to or smaller than the wavelength of a propagation light, a light emitter disposed at a predetermined position of the optical waveguide, and a first reflector and a second reflector formed in the optical waveguide with the light emitter interposed therebetween, wherein at least one of the first reflector and the second reflector transmits a part of the propagation light. With such a configuration, the channeling efficiency of the light emitted from the light emitter and the propagation mode of the optical waveguide is dramatically improved. | 05-17-2012 |
Shinya Hakuta, Kanagawa JP
| Patent application number | Description | Published |
|---|---|---|
| 20090066254 | SELF-BALLASTED FLUORESCENT LAMP AND LIGHTING APPARATUS - A self-ballasted fluorescent lamp capable of achieving a similar appearance to that of an electric light bulb for general illumination includes a base that is attached to a bottom end of a cover and a luminous tube that is supported at a top end of the cover. Electronic components forming a lighting circuit are mounted on a substrate. The substrate is formed to have such a width dimension that allows the substrate to be inserted into the base. The substrate is vertically disposed along a center axis of the base at a position offset from the center axis. Large electronic components are disposed on a first face of the substrate, which faces a large component area in the base formed by the offset substrate. | 03-12-2009 |
Shinya Hakuta, Yokohama-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20080238291 | COMPACT FLUORESCENT LAMP AND LIGHTING APPARATUS - A compact fluorescent lamp includes an arc tube having a bulb with a spiral portion formed in at least a portion thereof, the bulb having an electrode sealed in each of both end portions thereof so as to form a discharge path inside, and both the end portions of the bulb opposing to each other at positions inside a portion having a maximum outer diameter of the spiral portion so that the opposing end portions have a minimum distance of 5 to 15 mm; a lighting device lightening the arc tube; a cover member which supports the arc tube and in which the lighting device is arranged; and a base supported by the cover member. | 10-02-2008 |
| 20100097007 | LIGHT-EMITTING DIODE LIGHTING DEVICE - There is provided an LED lighting device having a satisfactory temperature characteristic and a small amount of variation in output current. The step-down chopper is provided with a first circuit including the switching element, the impedance means and a first inductor connected in series and a second circuit including the first inductor and a diode connected in series. A self-excited drive signal generation circuit is provided with a second inductor magnetically coupled with the first inductor and applies a voltage induced in the second inductor to the switching element to keep the switching element on. A turn-off circuit outputs an output voltage when the voltage of the impedance means detected by a comparator exceeds the reference value, and the output voltage allows a switching element to turn on to short-circuit the output terminals of the self-excited drive signal generation circuit, resulting in that the switching element is turned off. | 04-22-2010 |
Shinya Hakuta, Ashigarakami-Gun JP
| Patent application number | Description | Published |
|---|---|---|
| 20110111210 | HEAT RAY-SHIELDING MATERIAL - The present invention provides a heat ray-shielding material which includes metal particle-containing layer containing at least one kind of metal particle, wherein the metal particle contains substantially hexagonal or substantially discoidal metallic flat particles in an amount of 60% by number or more, and the main planes of the metallic flat particles are oriented at an angle ranging from 0° to ±30° relative to one surface of the metal particle-containing layer. | 05-12-2011 |
Takashi Hakuta, Chiba JP
| Patent application number | Description | Published |
|---|---|---|
| 20090118404 | Rubber Composition and Used Thereof - It is an object of the present invention to provide a rubber composition which has been improved in mechanical properties with maintaining excellent various properties and is favorably used for a fuel cell sealing member, a hard disc drive top cover gasket member and an electric wire connector sealing member. It is another object of the present invention to provide main bodies mounted with the above respective members obtained by the use of the rubber composition. The rubber composition of the invention comprises a specific ethylene/α-olefin/non-conjugated polyene copolymer in which the non-conjugated polyene is a norbornene-based compound, a specific SiH group-containing compound, and if necessary, an organopolysiloxane. Such a rubber composition of the invention is excellent in mechanical properties and can be particularly favorably used for a fuel cell sealing member, a hard disc drive top cover gasket, an electric wire connector sealing member, etc. | 05-07-2009 |
| 20090126234 | Foams, foaming compositions and applications thereof - [Objects] It is an object to provide a foam having a low specific gravity and a small compression set, more preferably a foam having a low specific gravity, a small compression set and uniform quality, a foaming composition, and applications of the foam. | 05-21-2009 |
| 20090234073 | Alpha-Olefin/non-conjugated cyclic polyene copolymers, production processes thereof, and crosslinkable compositions including the copolymer - An α-olefin/non-conjugated cyclic polyene copolymer (A) includes structural units (I) derived from an α-olefin and structural units (H) derived from a vinyl group-containing cyclic olefin. The copolymer has a molecular weight distribution (Mw/Mn) of not more than 2.7 and is amorphous or low crystalline with a crystalline heat of fusion (ΔH) of less than 90 kJ/kg. The copolymer is efficiently produced using a specific transition metal catalyst that has a ligand with a phenoxyimine skeleton. The copolymer of the invention has a narrower molecular weight distribution and a higher content of vinyl groups as compared with existing copolymers. The copolymer can then give crosslinked products having excellent tensile properties. The copolymer is also used as a plasticizer for polymers such as rubbers, and provides excellent processability and superior mechanical strength and rubber elasticity of crosslinked products. By converting the vinyl groups in the copolymer to polar groups, various functional polyolefin materials are obtained. | 09-17-2009 |
Takashi Hakuta, Shiba JP
| Patent application number | Description | Published |
|---|---|---|
| 20120073655 | PACKAGE BODY FOR STORING OR TRANSPORTING SOLAR CELL SEALING FILM AND METHOD FOR STORING OR TRANSPORTING SOLAR CELL SEALING FILM - A package for storing or transporting a solar cell sealing film includes: the solar cell sealing film containing a silane compound and/or a silane-modified resin; and a package bag packaging the solar cell sealing film. The absolute humidity inside the package is 1 to 15 g/m | 03-29-2012 |
Takashi Hakuta, Sodegaura-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090239014 | Rubber composition, crosslinked product and foam thereof, molded product therefrom, and use thereof - The present invention provides a molded product exhibiting excellent various properties by improving compatibility of an ethylene/α-olefin/non-conjugated polyene copolymer with a polyolefin resin and a rubber composition for forming the molded product. The present invention further provides a molded product which comprises a rubber composition, is inhibited from fogging and tackiness and is excellent in mechanical strength and heat aging resistance. The rubber composition of the invention comprises an ethylene/α-olefin/non-conjugated polyene copolymer (A), and a polyolefin resin (B) having Mn of not less than 10,000 and/or an ethylene/α-olefin copolymer (C) having Mn of 2500 to 5000, and satisfies the following requirements: (1) a maximum value and a minimum value of an ethylene distribution parameter P of the component (A) have a relationship of Pmax/Pmin≦1.4, and (2) the B value of the component (C) ([EX]/(2[E]×[X])) ([E] and [X] are molar fractions of ethylene and the α-olefin of 3 to 20 carbon atoms, respectively, and [EX] is a fraction of dyad sequence of ethylene/α-olefin of 3 to 20 carbon atoms) is not more than 1.05. | 09-24-2009 |
| 20100144997 | Copolymer Rubber, Rubber Composition and Rubber Molded Product - The invention provides a copolymer rubber excellent in processability in kneading and processability in extrusion; rubber compositions containing the rubber; and crosslinked moldings of the compositions excellent in sealing properties and shape retention. A random copolymer rubber of ethylene (A), a C | 06-10-2010 |
| 20120073631 | ETHYLENE RESIN COMPOSITION, SEALING MATERIAL FOR SOLAR CELL, AND SOLAR CELL MODULE UTILIZING THE SEALING MATERIAL - The purpose of the present invention is to provide an ethylene resin composition which has excellent properties including adhesion properties, electrically insulating properties, transparency, moldability and process stability and can be produced without requiring any cross-linking procedure if necessary to improve productivity; and others. The ethylene resin composition contains a modified product produced by modifying an ethylene polymer (A) that meets all of the requirements a) to e) mentioned below with an ethylenically unsaturated silane compound (B). a) The density is 900 to 940 kg/m | 03-29-2012 |