Patents by Inventor Takashi Kuwahara

Takashi Kuwahara 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).

  • Patent number: 8376112
    Abstract: A drive force transmitting apparatus comprises a dry clutch, a hydraulic cylinder, a piston arm, an elastic partitioning member, a first seal member and a leakage lubricating fluid recovery path. The elastic partitioning member prevents lubricating fluid that has leaked from a sliding portion of a piston of the hydraulic cylinder from flowing into the dry clutch. The first seal member is disposed between opposing surfaces of a cylinder housing and a clutch cover at a position downstream from the elastic partitioning member in a leakage flow direction of lubricating fluid that has leaked. The leakage lubricating fluid recovery path is at least partially formed by a gap between the cylinder housing and the clutch cover, such that lubricating fluid leaking past the piston is conveyed to an inside of the transmission while maintaining a sealed state established by the elastic partitioning member and the first seal member.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: February 19, 2013
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takashi Kuwahara, Yasuo Takagi
  • Patent number: 8346161
    Abstract: When a transmission request for new data is issued under a situation where a plurality of data are transmitted to a specific service area from a plurality of service areas, a feeder link station searches an available frequency to be allocated to the new data in a down-link frequency band of the specific service area, and when any of data communications is completed, allocates a down-link frequency band used in the data communication as a down-link frequency band for the new data. A satellite repeater arranges the new data on the down-link frequency band right after the data communication is completed following a relay control by the feeder link station.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: January 1, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yasushi Sogabe, Akinori Fujimura, Takashi Kuwahara, Futaba Ejima
  • Patent number: 8303357
    Abstract: A conductor-connecting washer arranged between two conductors to electrically connect the two conductors includes a metal plate portion including a washer hole in the middle and 24 or more contact protrusions integrally formed on each of both surfaces of the plate portion, 16 or more of which are bent alternately toward each of both surface sides along the outer circumference of the plate portion and 8 or more of which are bent alternately toward each of both surface sides along the inner circumference of the washer hole.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: November 6, 2012
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Takashi Kuwahara, Yoshiaki Ishiyama
  • Publication number: 20110287644
    Abstract: A conductor-connecting washer arranged between two conductors to electrically connect the two conductors includes a metal plate portion including a washer hole in the middle and 24 or more contact protrusions integrally formed on each of both surfaces of the plate portion, 16 or more of which are bent alternately toward each of both surface sides along the outer circumference of the plate portion and 8 or more of which are bent alternately toward each of both surface sides along the inner circumference of the washer hole.
    Type: Application
    Filed: April 8, 2011
    Publication date: November 24, 2011
    Applicant: Japan Aviation Electronics Industry Limited
    Inventors: Takashi Kuwahara, Yoshiaki Ishiyama
  • Publication number: 20110221292
    Abstract: In a friction coupling device, a restriction mechanism is further provided for restricting relative movement between a cylinder member and a drum member. The restriction mechanism is located on the cylinder-chamber side than friction plates in a pressing direction of a piston, and thus the friction coupling device can realize stable coupling operations without increasing the thickness of an outer wall or the like.
    Type: Application
    Filed: November 25, 2009
    Publication date: September 15, 2011
    Inventors: Takashi Kuwahara, Shigeru Ishii
  • Publication number: 20110220451
    Abstract: In a dry clutch, the space between dry-clutch plates and a bearing, which bearing is interposed between a first piston and a second piston, is blocked off. Also provided is a structure for supplying the bearing with lubricating oil, and thus it is possible to provide the dry clutch, without causing upsizing the bearing.
    Type: Application
    Filed: November 25, 2009
    Publication date: September 15, 2011
    Inventors: Takashi Kuwahara, Shigeru Ishii
  • Patent number: 7956918
    Abstract: Provided is a solid-state image pickup device capable of outputting fine quality image signals at high speed. Vertical transfer sections 40 and a distribution transfer section 20 have a common pattern of electrodes for each 2n+1 (n is an integer equal to or greater than 1) and comprise driving electrodes V1 to V6, V3R, V3L, V5R, and V5L, to which driving pulses ?V1 to ?V6, ?V3R, ?V3L, ?V5R, and ?V5L are applied. The driving electrodes V1, V2, V4, and V6 are shared by all columns and the driving electrodes V3, V3R, V3L, V5R, and V5L are independent electrodes which are separated in an island-like manner. The distribution transfer section 20 controls, independently for each column, reading out signal charges from the vertical transfer sections 40 to the horizontal transfer section 10.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: June 7, 2011
    Assignee: Panasonic Corporation
    Inventors: Takashi Kuwahara, Yasuyuki Shimizu
  • Publication number: 20100288597
    Abstract: A drive force transmitting apparatus comprises a dry clutch, a hydraulic cylinder, a piston arm, an elastic partitioning member, a first seal member and a leakage lubricating fluid recovery path. The elastic partitioning member prevents lubricating fluid that has leaked from a sliding portion of a piston of the hydraulic cylinder from flowing into the dry clutch. The first seal member is disposed between opposing surfaces of a cylinder housing and a clutch cover at a position downstream from the elastic partitioning member in a leakage flow direction of lubricating fluid that has leaked. The leakage lubricating fluid recovery path is at least partially formed by a gap between the cylinder housing and the clutch cover, such that lubricating fluid leaking past the piston is conveyed to an inside of the transmission while maintaining a sealed state established by the elastic partitioning member and the first seal member.
    Type: Application
    Filed: May 11, 2010
    Publication date: November 18, 2010
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Takashi KUWAHARA, Yasuo TAKAGI
  • Patent number: 7811094
    Abstract: A contact member which is resistant to contact failure even if the environment of use is bad. A film is affixed to the surface of a long plate-shaped elastic body which is disposed between two to-be-connected objects. A electrically-conducting path which electrically connects between terminal portions of two to-be-connected objects is provided on the surface of the film. A first conductor contact portion which is capable of being brought into contact with the terminal portion of one of two to-be-connected objects is disposed at one end of the electrically-conducting path, and a second conductor contact portion which is capable of being brought into contact with the terminal portion of the other of two to-be-connected objects is disposed at the other end of the electrically-conducting path. A plurality of holes are formed in the first and second conductor contact portions.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: October 12, 2010
    Assignee: Japan Aviation Electronics Industry Limited
    Inventors: Takashi Kuwahara, Seiya Takahashi, Hiroshi Akimoto
  • Patent number: 7614884
    Abstract: For achieving electrical connection by contact with a connection object, a connector includes a body portion including an elastic body. A conductive layer extends along a surface of the body portion and is adapted for contact with the connection object. The conductive layer has a plurality of projections projecting outward.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: November 10, 2009
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Takashi Kuwahara, Seiya Takahashi, Hiroshi Akimoto
  • Publication number: 20090191810
    Abstract: When a transmission request for new data is issued under a situation where a plurality of data are transmitted to a specific service area from a plurality of service areas, a feeder link station searches an available frequency to be allocated to the new data in a down-link frequency band of the specific service area, and when any of data communications is completed, allocates a down-link frequency band used in the data communication as a down-link frequency band for the new data. A satellite repeater arranges the new data on the down-link frequency band right after the data communication is completed following a relay control by the feeder link station.
    Type: Application
    Filed: May 15, 2007
    Publication date: July 30, 2009
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yasushi Sogabe, Akinori Fujimura, Takashi Kuwahara, Futaba Ejima
  • Patent number: 7537462
    Abstract: In a connector to be connected by press contact in a connecting direction, plural contacts are coupled to a first frame having two principal surfaces opposite to each other in the connecting direction. A second frame is coupled to the first frame and guides the first frame in a specific direction perpendicular to the connecting direction. Each of the contacts includes an insulating elastic member and a conductor combined with the elastic member. The conductor includes portions protruding from the principal surfaces, respectively.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: May 26, 2009
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventors: Koji Higuchi, Seiya Matsuo, Takashi Kuwahara
  • Publication number: 20090130924
    Abstract: A contact member which is resistant to contact failure even if the environment of use is bad. A film is affixed to the surface of a long plate-shaped elastic body which is disposed between two to-be-connected objects. A electrically-conducting path which electrically connects between terminal portions of two to-be-connected objects is provided on the surface of the film. A first conductor contact portion which is capable of being brought into contact with the terminal portion of one of two to-be-connected objects is disposed at one end of the electrically-conducting path, and a second conductor contact portion which is capable of being brought into contact with the terminal portion of the other of two to-be-connected objects is disposed at the other end of the electrically-conducting path. A plurality of holes are formed in the first and second conductor contact portions.
    Type: Application
    Filed: October 23, 2008
    Publication date: May 21, 2009
    Applicant: Japan Aviation Electronics Industry, Limited
    Inventors: Takashi Kuwahara, Seiya Takahashi, Hiroshi Akimoto
  • Publication number: 20080299805
    Abstract: In a connector to be connected by press contact in a connecting direction, plural contacts are coupled to a first frame having two principal surfaces opposite to each other in the connecting direction. A second frame is coupled to the first frame and guides the first frame in a specific direction perpendicular to the connecting direction. Each of the contacts includes an insulating elastic member and a conductor combined with the elastic member. The conductor includes portions protruding from the principal surfaces, respectively.
    Type: Application
    Filed: May 28, 2008
    Publication date: December 4, 2008
    Inventors: Koji Higuchi, Seiya Matsuo, Takashi Kuwahara
  • Publication number: 20080293306
    Abstract: For achieving electrical connection by contact with a connection object, a connector includes a body portion including an elastic body. A conductive layer extends along a surface of the body portion and is adapted for contact with the connection object. The conductive layer has a plurality of projections projecting outward.
    Type: Application
    Filed: May 22, 2008
    Publication date: November 27, 2008
    Inventors: Takashi Kuwahara, Seiya Takahashi, Hiroshi Akimoto
  • Patent number: 7439114
    Abstract: For obtaining p-Si by irradiating a laser beam to an a-Si layer to polycrystallize, an energy level in a region to be irradiated by the laser beam is set such that a level at the rear area of the region along a scan direction of the laser beam is lower than that at the front area or the center area of the region. The energy level at the front area or the center area of the region is set such that it is substantially equal to or more than the upper limit energy level which maximizes a grain size of the p-Si obtained. Since an energy profile is set as described above, when the laser beam is scanned on the a-Si layer, an irradiated energy of the laser on the region is gradually lowered from the upper limit as the laser beam passes through, which allows the semiconductor layer to be annealed within an optimal energy level during the latter half of the annealing process.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: October 21, 2008
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hidenori Ogata, Ken Wakita, Kiyoshi Yoneda, Yoshihiro Morimoto, Tsutomu Yamada, Kazuhiro Imao, Takashi Kuwahara
  • Publication number: 20070126906
    Abstract: Provided is a solid-state image pickup device capable of outputting fine quality image signals at high speed. Vertical transfer sections 40 and a distribution transfer section 20 have a common pattern of electrodes for each 2n+1 (n is an integer equal to or greater than 1) and comprise driving electrodes V1 to V6, V3R, V3L, V5R, and V5L, to which driving pulses ?V1 to ?V6, ?V3R, ?V3L, ?V5R, and ?V5L are applied. The driving electrodes V1, V2, V4, and V6 are shared by all columns and the driving electrodes V3, V3R, V3L, V5R, and V5L are independent electrodes which are separated in an island-like manner. The distribution transfer section 20 controls, independently for each column, reading out signal charges from the vertical transfer sections 40 to the horizontal transfer section 10.
    Type: Application
    Filed: November 30, 2006
    Publication date: June 7, 2007
    Inventors: Takashi Kuwahara, Yasuyuki Shimizu
  • Patent number: 7061017
    Abstract: For obtaining p-Si by irradiating a laser beam to an a-Si layer to polycrystallize, an energy level in a region to be irradiated by the laser beam is set such that a level at the rear area of the region along a scan direction of the laser beam is lower than that at the front area or the center area of the region. The energy level at the front area or the center area of the region is set such that it is substantially equal to or more than the upper limit energy level which maximizes a grain size of the p-Si obtained. Since an energy profile is set as described above, when the laser beam is scanned on the a-Si layer, an irradiated energy of the laser on the region is gradually lowered from the upper limit as the laser beam passes through, which allows the semiconductor layer to be annealed within an optimal energy level during the latter half of the annealing process.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: June 13, 2006
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hidenori Ogata, Ken Wakita, Kiyoshi Yoneda, Yoshihiro Morimoto, Tsutomu Yamada, Kazuhiro Imao, Takashi Kuwahara
  • Patent number: 6984535
    Abstract: An electron-emitting device including a protective layer that is formed on a catalyst layer to protect the catalyst layer from the deleterious environmental conditions before or during a cathode process. The present invention further includes a half etching process that is adapted to partially remove portions of the protective layer from the catalyst layer to etch the catalyst layer except carbon nano-tube growing portions. Portions of the protective layer still remain on the catalyst layer to protect the catalyst layer from the deleterious conditions from next cathode formation process.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: January 10, 2006
    Assignee: cDream Corporation
    Inventors: Jong Woo Son, Chul Ha Chang, Jung-Jae Kim, Koji Suzuki, Takashi Kuwahara
  • Publication number: 20050287825
    Abstract: For obtaining p-Si by irradiating a laser beam to an a-Si layer to polycrystallize, an energy level in a region to be irradiated by the laser beam is set such that a level at the rear area of the region along a scan direction of the laser beam is lower than that at the front area or the center area of the region. The energy level at the front area or the center area of the region is set such that it is substantially equal to or more than the upper limit energy level which maximizes a grain size of the p-Si obtained. Since an energy profile is set as described above, when the laser beam is scanned on the a-Si layer, an irradiated energy of the laser on the region is gradually lowered from the upper limit as the laser beam passes through, which allows the semiconductor layer to be annealed within an optimal energy level during the latter half of the annealing process.
    Type: Application
    Filed: August 18, 2005
    Publication date: December 29, 2005
    Inventors: Hidenori Ogata, Ken Wakita, Kiyoshi Yoneda, Yoshihiro Morimoto, Tsutomu Yamada, Kazuhiro Imao, Takashi kuwahara