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Ikemura
Jiro Ikemura, Osaka JP
| Patent application number | Description | Published |
|---|---|---|
| 20120062275 | INTERFACE CIRCUIT - In performing calibration, a control circuit in a calibration circuit of an interface circuit controls a selector so that voltages V | 03-15-2012 |
Kazuhiro Ikemura, Ibaraki-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100193972 | SPHERICAL SINTERED FERRITE PARTICLES, RESIN COMPOSITION FOR SEMICONDUCTOR ENCAPSULATION COMPRISING THEM AND SEMICONDUCTOR DEVICES PRODUCED BY USING THE SAME - A resin composition for semiconductor encapsulation having good moldability, of which the cured product has effective electromagnetic wave shieldability, is provided. A resin composition for semiconductor encapsulation, containing spherical sintered ferrite particles having the following properties (a) to (c) : (a) the soluble ion content of the particles is at most 5 ppm; (b) the mean particle size of the particles is from 10 to 50 μm; (c) the crystal structure of the particles by X-ray diffractiometry is a spinel structure. | 08-05-2010 |
| 20110291303 | Semiconductor Device, Substrate for Producing Semiconductor Device and Method of Producing Them - A semiconductor device includes a die pad, a semiconductor element which is loaded on the die pad, and a sealing resin. A plurality of electrically conductive portions each having a layered structure including a metal foil comprising copper or a copper alloy, and electrically conductive portion plating layers provided at both upper and lower ends of the metal foil are arranged around the die pad. The die pad has a lower die pad plating layer, and the semiconductor element is loaded on the die pad comprising such a die pad plating layer. Electrodes provided on the semiconductor element are electrically connected with top ends of the electrically conductive portions via wires, respectively. The lower electrically conductive portion plating layers of the electrically conductive portions and the die pad plating layer of the die pad are exposed outside from the sealing resin on their back faces. | 12-01-2011 |
Kunio Ikemura, Kyoto JP
| Patent application number | Description | Published |
|---|---|---|
| 20090105361 | Camphorquinone Derivative Having Acylphosphine Oxide Group, Photopolymerization Catalyst And Photo/Chemical Polymerization Catalyst Containing The Same And Hardenable Composition Contaning The Same - A compound that exhibits excellent color tone stability and physical properties as well as excellent photopolymerization activity over a wide region from near-ultraviolet to visible region, permitting relaxed operation under ambient light, so that wide application can be found in the dental field and photopolymerization industry; and a relevant photopolymerization initiator and hardenable composition. In particular, there is provided a novel camphorquinone derivative having an acylphosphine oxide group [—(C═O)—(P═O)<] in each molecule. Further, there is provided a photopolymerization initiator comprising the camphorquinone derivative having an acrylphosphine oxide group [—(C═O)—(P═O)<] in each molecule as an indispensable component, loaded with at least one member selected from among a polymerization accelerator, a photoacid generator, a photosensitizer and a (bis)acylphosphine oxide, and provided a hardenable composition comprising the initiator. The thus provided photopolymerization initiator and hardenable composition exhibit excellent color tone stability and physical properties as well as excellent photopolymeritzaion activity over an ultraviolet and visible wide wavelength region, permitting relaxed operation under ambient light, so that wide application can be found in the dental field and photopolymerization industry. | 04-23-2009 |
Kunio Ikemura, Kyoto-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090048426 | POLYMERIZABLE PHOSPHONIC ACID DERIVATIVE AND ADHESIVE COMPOSITION COMPRISING THE SAME - The present invention provides an adhesive composition comprising a polymerizable phosphonic acid derivative which is a composition having intramolecularly a polymerizable group and a phosphonic acid group, represented by the general formula [1]: | 02-19-2009 |
Masahiro Ikemura, Kawasaki-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100061873 | Bi-directional converter between pressure and rotational force - A bi-directional converter between pressure and rotational force includes engaging rotation members that continue to rotate while being adjacent to each other without collision; the rotation members and an outer wall form an enclosed space; rotation shafts of the rotation members are mutually engaged by gear wheels; the rotation members are synchronized and rotate in opposite directions; the rotation members are rotated by a volume change of the enclosed space by application of pressure from outside; and the volume of the enclosed space is changed by rotational force to generate a pressure difference. The bi-directional converter includes an open-close mechanism opening and closing supply exhaust paths inside the rotation member and disposed to the rotation shaft or the outer wall according to a rotation angle. | 03-11-2010 |
Masahiro Ikemura, Kanagawa JP
| Patent application number | Description | Published |
|---|---|---|
| 20110271780 | NON-TRANSMISSION-ERROR AND NON-BACKLASH GEARS - As for the gears, this invention makes the transmission angle error and the backlash very small, and reduces vibration and mechanical sound. If form of the teeth in gears are made into the circle, at the angle which the peak of a tooth top and the peak of a tooth bottom overlap, the backlash of the gears will be made to zero. As for the other mesh angle, the correct degree of transmission angle is included in the range of the backlash. If it sets it as 1 cycle to become mesh of the same condition, as for one half of cycles, it will be in the condition which the tooth top and the tooth bottom replaced, and will become the same mesh. If the slice of the gears of the circle-tooth is made as the helical gear by the detailed lamination, the mesh from which the phase shifted exists in that pitch point, and the action of the gears are limited at a zero-backlash-part. Hence, if it is the helical gear of the phase-width of more-1/2-cycles of the circle-tooth, it will be an exact-transmission-angle in all the rotation-angles, and it will become mesh of the zero-backlash. Moreover, it sets up the margin to the collision direction and has the tooth-form-shaping, as the zero-backlash of the aforesaid gears is maintained. | 11-10-2011 |
Masashi Ikemura, Toyota-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20100095795 | Transmission - A transmission includes a case having an internal space; a first partition wall which is provided in the case and forms a boundary between a first chamber which is arranged in the case and houses a rotating object, and a second chamber which is arranged in the case, is connected to the first chamber, and maintains equal pressure between the first chamber and outside air; a second partition wall which is provided in the case and forms a boundary between the second chamber and a third chamber which is arranged in the case and stores fluid below the second chamber; and a third partition wall which is provided in the case and forms a boundary between the first chamber and the third chamber. A first hole and a second hole are formed in that order from the first chamber side in the second partition wall. | 04-22-2010 |
Toshihide Ikemura, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20090137583 | 2-AMINOQUINAZOLINE DERIVATIVES - The present invention provides 2-aminoquinazoline derivatives represented by formula (I): | 05-28-2009 |