Patents by Inventor Ryouichi Yoshida
Ryouichi Yoshida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7919914Abstract: It is possible to enhance the luminance of a cold-cathode type discharge lamp and to contribute to a prolongation of service life thereof. A discharge lamp 1 is provided with an electrode 3 having a cup 4 with such a shape that a bottom is provided at each of both opposed ends of the glass tube 2. The cup 4 is connected to a lead-in wire 8 which is inserted through the end of the glass tube 2 and held thereby. The collision-preventing ring 5 covering an end surface of the cup 4 is provided to the open end 4a of the cup 4. The porous tungsten disk 6 impregnated with a ternary metal oxide composed of barium (Ba), aluminum (Al), and calcium (Ca) as an electron emission material is provided at a bottom in an inside of the cup 4.Type: GrantFiled: February 26, 2010Date of Patent: April 5, 2011Assignee: Sony CorporationInventors: Hiroshi Takahashi, Yukio Hara, Masahiro Kikuchi, Yoshiichi Horikoshi, Hiroto Watanabe, Ryouichi Yoshida
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Patent number: 7750546Abstract: It is possible to enhance the luminance of a cold-cathode type discharge lamp and to contribute to a prolongation of service life thereof. A discharge lamp 1 is provided with an electrode 3 having a cup 4 with such a shape that a bottom is provided at each of both opposed ends of the glass tube 2. The cup 4 is connected to a lead-in wire 8 which is inserted through the end of the glass tube 2 and held thereby. The collision-preventing ring 5 covering an end surface of the cup 4 is provided to the open end 4a of the cup 4. The porous tungsten disk 6 impregnated with a ternary metal oxide composed of barium (Ba), aluminum (Al), and calcium (Ca) as an electron emission material is provided at a bottom in an inside of the cup 4.Type: GrantFiled: January 19, 2005Date of Patent: July 6, 2010Assignee: Sony CorporationInventors: Hiroshi Takahashi, Yukio Hara, Masahiro Kikuchi, Yoshiichi Horikoshi, Hiroto Watanabe, Ryouichi Yoshida
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Publication number: 20100156270Abstract: It is possible to enhance the luminance of a cold-cathode type discharge lamp and to contribute to a prolongation of service life thereof. A discharge lamp 1 is provided with an electrode 3 having a cup 4 with such a shape that a bottom is provided at each of both opposed ends of the glass tube 2. The cup 4 is connected to a lead-in wire 8 which is inserted through the end of the glass tube 2 and held thereby. The collision-preventing ring 5 covering an end surface of the cup 4 is provided to the open end 4a of the cup 4. The porous tungsten disk 6 impregnated with a ternary metal oxide composed of barium (Ba), aluminum (Al), and calcium (Ca) as an electron emission material is provided at a bottom in an inside of the cup 4.Type: ApplicationFiled: February 26, 2010Publication date: June 24, 2010Applicant: SONY CORPORATIONInventors: Hiroshi Takahashi, Yukio Hara, Masahiro Kikuchi, Yoshiichi Horikoshi, Hiroto Watanabe, Ryouichi Yoshida
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Patent number: 7714487Abstract: It is possible to prolong service life of a discharge lamp of hot-cathode type and to reduce a diameter thereof. A discharge lamp 1 is provided with an electrode 3. The electrode 3 has a heater 4 made up a coil portion 4a, and a first lead wire portion 4b and a second lead wire portion 4c that respectively extend from rear ends of this coil portion 4a and applied by an electron emission material 3a. In the electrode 3, a first lead-in wires 6a is connected to the first lead wire portion 4b and a second lead-in wires 6b is connected to the second lead wire portion 4c, so that the coil portion 4a is arranged vertically along the tube axis of the glass tube 2. The electrode 3 is also provided a sleeve 7 covering surrounding of the coil portion 4a and having openings in the faces respectively opposite to the forward end and rear end of the coil portion 4a. An open end 7a of the sleeve 7 exceeds a forward end of the coil portion 4a, thereby protecting the coil portion 4a.Type: GrantFiled: January 19, 2005Date of Patent: May 11, 2010Assignee: Sony CorporationInventors: Yoshiichi Horikoshi, Yukio Hara, Masahiro Kikuchi, Hiroshi Takahashi, Ryouichi Yoshida, Hiroto Watanabe
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Publication number: 20080252216Abstract: It is possible to enhance the luminance of a cold-cathode type discharge lamp and to contribute to a prolongation of service life thereof. A discharge lamp 1 is provided with an electrode 3 having a cup 4 with such a shape that a bottom is provided at each of both opposed ends of the glass tube 2. The cup 4 is connected to a lead-in wire 8 which is inserted through the end of the glass tube 2 and held thereby. The collision-preventing ring 5 covering an end surface of the cup 4 is provided to the open end 4a of the cup 4. The porous tungsten disk 6 impregnated with a ternary metal oxide composed of barium (Ba), aluminum (Al), and calcium (Ca) as an electron emission material is provided at a bottom in an inside of the cup 4.Type: ApplicationFiled: January 19, 2005Publication date: October 16, 2008Applicant: Sony CorporationInventors: Hiroshi Takahashi, Yukio Hara, Masahiro Kikuchi, Yoshiichi Horikoshi, Hiroto Watanabe, Ryouichi Yoshida
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Publication number: 20070228913Abstract: It is possible to prolong service life of a discharge lamp of hot-cathode type and to reduce a diameter thereof. A discharge lamp 1 is provided with an electrode 3. The electrode 3 has a heater 4 made up a coil portion 4a, and a first lead wire portion 4b and a second lead wire portion 4c that respectively extend from rear ends of this coil portion 4a and applied by an electron emission material 3a. In the electrode 3, a first lead-in wires 6a is connected to the first lead wire portion 4b and a second lead-in wires 6b is connected to the second lead wire portion 4c, so that the coil portion 4a is arranged vertically along the tube axis of the glass tube 2. The electrode 3 is also provided a sleeve 7 covering surrounding of the coil portion 4a and having openings in the faces respectively opposite to the forward end and rear end of the coil portion 4a. An open end 7a of the sleeve 7 exceeds a forward end of the coil portion 4a, thereby protecting the coil portion 4a.Type: ApplicationFiled: January 19, 2005Publication date: October 4, 2007Inventors: Yoshiichi Horikoshi, Yukio Hara, Masahiro Kikuchi, Hiroshi Takahashi, Ryouichi Yoshida, Hiroto Watanabe
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Patent number: 5437471Abstract: An inflator with a starter for starting a gas generator of a side collision air bag device is formed of: a needle disposed in the side face of a vehicle and made movable from the outside to the inside of the vehicle; an elastic member for urging the needle in the opposite direction to the movement of the needle; and a priming powder disposed forward of the movement of the needle. When the priming powder is hit by the needle, the ignition agent of the gas generator ignites to inflate an air bag.Type: GrantFiled: October 20, 1993Date of Patent: August 1, 1995Assignee: Takata CorporationInventors: Ryouichi Yoshida, Hiroaki Fujii, Atsushi Tsuji, Tomoko Shimizu, Nobuya Osada, Takahiro Yamanishi
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Patent number: 5375877Abstract: A lateral collision detector is formed of a wire extended along the inner face of the outer plate of an automotive door; and a signal output device adapted to be pulled and actuated by the wire.Type: GrantFiled: October 20, 1993Date of Patent: December 27, 1994Assignee: Takata CorporationInventors: Ryouichi Yoshida, Hiroaki Fujii, Takahiro Yamanishi, Tomoko Shimizu, Atsushi Tsuji, Nobuya Osada
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Patent number: 5373740Abstract: An acceleration sensor is formed of a magnet having a magnetizing pattern in which N and S poles are alternately arrayed in one direction, a housing for slidingly holding the magnet in one direction, and a magneto-electric converting element provided within the housing facing the magnet. The acceleration sensor detects a change in speed applied to the acceleration sensor from the output of the magneto-electric converting element.Type: GrantFiled: March 3, 1993Date of Patent: December 20, 1994Assignee: Takata CorporationInventors: Ryouichi Yoshida, Kiyotaka Miyauchi
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Patent number: 5372041Abstract: An acceleration sensor is formed of a coil and a magnet which is capable of moving forward and back relative to the coil in the axial direction thereof. A change in speed applied to the acceleration sensor is detected through a magnitude of voltage generated in the coil due to the movement of the magnet.Type: GrantFiled: March 3, 1993Date of Patent: December 13, 1994Assignee: Takata CorporationInventors: Ryouichi Yoshida, Kiyotaka Miyauchi
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Patent number: 5285188Abstract: A vehicle collision detecting system includes an impact sensor, a distance sensor for detecting a distance to an obstacle, a differential circuit for differentiating the distance to provide a relative speed, and a microcomputer for computing a distance after a time, based on the detected distance and the relative speed, and determining whether the computed distance becomes zero within a predetermined time. If the calculated distance becomes zero within the predetermined time, a collision unavoidable signal is generated. A collision signal or air bag activating signal is then generated as soon as an impact is detected by the impact detector.Type: GrantFiled: May 29, 1992Date of Patent: February 8, 1994Assignee: Takata CorporationInventor: Ryouichi Yoshida