Patents by Inventor Takashi Saitou
Takashi Saitou 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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Publication number: 20100156122Abstract: An underrun protector mounting structure 3 includes: a chassis frame 4; a front underrun protector 5 which is disposed at the front or rear of the chassis frame 4 and extended in a lateral direction of the vehicle; a bracket 6 for fixing the front underrun protector 5 to the chassis frame 4; and a support part 7 interposed between the front underrun protector 5 and the bracket 6. The support part 7 has a first plate part 31 disposed on the front underrun protector 5 side and a second plate part 32 disposed on the first plate part 31 on the bracket 6 side. The first plate part 31 is formed to be wider in the lateral direction of the vehicle than the second plate part 32. The first and second plate parts 31 and 32 are stacked to form a leaf spring shape in a longitudinal direction of the vehicle.Type: ApplicationFiled: November 8, 2006Publication date: June 24, 2010Applicant: Isuzu Motors LimitedInventor: Takashi Saitou
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Publication number: 20100085133Abstract: A ground conductor (1) has a through hole provided through an area thereof for connection with a waveguide (6), with dimensions substantially equal to cavity dimensions of the waveguide (6), and a metallic spacer (7a) is provided as a holding element for a film substrate (4), with an even thickness to a dielectric substrate (2a), the metallic spacer (7a) having dimensions E1 and E2 of cavity walls thereof changed in accordance with a desirable frequency, and cooperating with another metallic spacer (7b) having substantially equal dimensions to the metallic spacer (7a), to sandwich the film substrate (4) in between, and in addition, an upper ground conductor (5) is arranged on the other metallic spacer (7b), and a quadrate resonant patch pattern (8) is formed at an end of the strip line conductor (3) formed to the film subs ate (4), on an area corresponding to a transducer end of the waveguide (6), while a combination of the quadrate resonant patch pattern (8) and the waveguide (6) is arranged such that the quType: ApplicationFiled: February 26, 2008Publication date: April 8, 2010Inventors: Taketo Nomura, Masahiko Oota, Hisayoshi Mizugaki, Yuichi Shimayama, Takashi Saitou, Masaya Kirihara, Keisuke Iijima
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Patent number: 7683769Abstract: A batteryless tire inflation pressure detecting apparatus includes, on the body of a vehicle, antennas and a transmitter transmitting radio waves through the antennas. The apparatus also includes, on each wheel of the vehicle, a pressure sensor sensing the pressure of a tire, a transceiver, and a charging unit powering the pressure sensor and the transceiver. The charging unit is charged with electric power induced by a corresponding one of the radio waves received by the transceiver. The apparatus further includes, on the body of the vehicle, a receiver receiving pressure signals transmitted by the transceivers, a pressure determiner determining the pressures of the tires based on the pressure signals, and a controller. To minimize influence of the radio waves on neighboring devices, the controller controls the transmitter so that least two of the radio waves are transmitted at different times, or at the same with a phase difference therebetween.Type: GrantFiled: March 21, 2007Date of Patent: March 23, 2010Assignees: Denso Corporation, Nippon Soken, Inc.Inventors: Takashi Saitou, Akira Takaoka, Nobuya Watabe, Hideki Saito, Tomohiro Kuno
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Patent number: 7656282Abstract: A tire inflation pressure detecting apparatus includes a second transceiver provided on the body of a vehicle which changes its operation alternately between a second transmitter and a second receiver mode, thereby intermittently transmitting a radio wave. A first transceiver provided on a wheel of the vehicle operates in a first receiver mode to receive the radio wave, thereby charging a charging unit. When the charging unit has been sufficiently charged, the first transceiver changes operation thereof from the first receiver mode to a first transmitter mode, in which the first transceiver first repeatedly transmits an informing signal at predetermined time intervals for a predetermined time period and then transmits a pressure signal. When the informing signal is received by the second transceiver in the second receiver mode, the second transceiver keeps its operation in the second receiver mode until the pressure signal is completely received.Type: GrantFiled: May 15, 2007Date of Patent: February 2, 2010Assignees: Denso Corporation, Nippon Soken, Inc.Inventors: Takashi Saitou, Akira Takaoka, Nobuya Watabe, Hideki Saito, Tomohiro Kuno
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Patent number: 7603895Abstract: A first trigger unit and a second trigger unit output trigger signals to transceivers disposed for the four wheels of a vehicle. The first and second trigger units are attached to wall surfaces of tire housings corresponding to the left front and left rear wheels respectively. Each of the first and second trigger units is arranged in a position of the wall surface having an angle from 5 to 25 degrees with respect to the side of the corresponding wheel. Transceivers attached to a right front and right rear wheels are thus located farther from the trigger units than the left front and left rear wheels, respectively. Such arrangement allows the transceivers attached to the right front and right rear wheels to receive the outputted trigger signals with sufficient accuracy due to high field strength.Type: GrantFiled: December 9, 2008Date of Patent: October 20, 2009Assignees: Nippon Soken, Inc., Denso CorporationInventors: Takashi Saitou, Akira Takaoka, Nobuya Watabe, Masashi Mori
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Publication number: 20090145217Abstract: A first trigger unit and a second trigger unit output trigger signals to transceivers disposed for the four wheels of a vehicle. The first and second trigger units are attached to wall surfaces of tire housings corresponding to the left front and left rear wheels respectively. Each of the first and second trigger units is arranged in a position of the wall surface having an angle from 5 to 25 degrees with respect to the side of the corresponding wheel. Transceivers attached to a right front and right rear wheels are thus located farther from the trigger units than the left front and left rear wheels, respectively. Such arrangement allows the transceivers attached to the right front and right rear wheels to receive the outputted trigger signals with sufficient accuracy due to high field strength.Type: ApplicationFiled: December 9, 2008Publication date: June 11, 2009Applicants: NIPPON SOKEN, INC., DENSO CORPORATIONInventors: Takashi Saitou, Akira Takaoka, Nobuya Watabe, Masashi Mori
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Publication number: 20090001768Abstract: An underrun protector mounting structure 3 includes: a chassis frame 4; a front underrun protector 5 which is disposed at the front or rear of the chassis frame 4 and extended in a lateral direction of the vehicle; a bracket 6 for fixing the front underrun protector 5 to the chassis frame 4; and a support part 7 interposed between the front underrun protector 5 and the bracket 6. The support part 7 has ribs 46 projected toward the bracket 6 and extended along the lateral direction of the vehicle. The bracket 6 has a plurality of rib receiving parts 30 which are formed approximately parallel to each other in a vertical direction of the vehicle with a space therebetween and which fit to the ribs 46. A mounting height of the support part 7 relative to the bracket 6 is set by selecting and fitting one of the plurality of rib receiving parts 30.Type: ApplicationFiled: October 25, 2006Publication date: January 1, 2009Applicant: Isuzu Motors LimitedInventor: Takashi Saitou
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Publication number: 20080303721Abstract: The present invention provides inexpensively a planar antenna module that is able to realize a loss reduction, a reduction in characteristic variation caused by an assembling error, and an improved stability in frequency characteristics. A planar antenna module according to one preferred embodiment of the present invention comprises an antenna portion (101), a feeder portion (102), and a connection plate (18). The antenna portion (101) includes a first ground plate (11) having a first slot (21), a second ground plate (12) having dielectrics, an antenna substrate having a radiation element (41), a third ground plate (13) having dielectrics, a fourth ground plate (14). The feeder portion (102) includes the fourth ground plate (14), a fifth ground plate (15), a feed substrate (50), a sixth ground plate (16), a seventh ground plate (17). The connection plate (18) has a second waveguide opening portion (64).Type: ApplicationFiled: July 9, 2008Publication date: December 11, 2008Inventors: Masahiko OOTA, Hisayoshi MIZUGAKI, Keisuke IIJIMA, Takashi SAITOU, Masaya KIRIHARA
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Publication number: 20080258894Abstract: In a wheel identifying apparatus, first and second devices respectively transmit first and second trigger signals. The first device is mounted on the body of a vehicle closer to the front axle than the rear axle and closer to one of the front wheels than the other; it has the same height as the front axle and an orientation angle in a range of 0 to 90°. The second device is mounted on the vehicle body closer to the rear axle than the front axle and closer to one of the rear wheels than the other; it has the same height as the rear axle and an orientation angle in a range of 0 to 90°. Consequently, the first trigger signal can be reliably received by transceivers on the front wheels, and the second trigger signal can be reliably received by transceivers on the rear wheels.Type: ApplicationFiled: April 18, 2008Publication date: October 23, 2008Applicants: NIPPON SOKEN, INC., DENSO CORPORATIONInventors: Takashi Saitou, Akira Takaoka, Nobuya Watabe, Masashi Mori, Tomohiro Kuno
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Patent number: 7411553Abstract: The present invention provides inexpensively a planar antenna module that is able to realize a loss reduction, a reduction in characteristic variation caused by an assembling error, and an improved stability in frequency characteristics. A planar antenna module according to one preferred embodiment of the present invention comprises an antenna portion (101), a feeder portion (102), and a connection plate (18). The antenna portion (101) includes a first ground plate (11) having a first slot (21), a second ground plate (12) having dielectrics, an antenna substrate having a radiation element (41), a third ground plate (13) having dielectrics, a fourth ground plate (14). The feeder portion (102) includes the fourth ground plate (14), a fifth ground plate (15), a feed substrate (50), a sixth ground plate (16), a seventh ground plate (17). The connection plate (18) has a second waveguide opening portion (64).Type: GrantFiled: October 25, 2005Date of Patent: August 12, 2008Assignee: Hitachi Chemical Co., Ltd.Inventors: Masahiko Oota, Hisayoshi Mizugaki, Keisuke Iijima, Takashi Saitou, Masaya Kirihara
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Publication number: 20070262856Abstract: In a tire inflation pressure detecting apparatus according the invention, a second transceiver provided on the body of a vehicle changes operation thereof alternatively between a second transmitter and a second receiver mode, thereby intermittently transmitting a radio wave. A first transceiver provided on a wheel of the vehicle operates in a first receiver mode to receive the radio wave, thereby charging a charging unit. When the charging unit has been sufficiently charged, the first transceiver changes operation thereof from the first receiver mode to a first transmitter mode, in which the first transceiver first repeatedly transmits an informing signal at predetermined time intervals for a predetermined time period and then transmits a pressure signal. When the informing signal is received by the second transceiver in the second receiver mode, the second transceiver keeps the operation thereof in the second receiver mode until the pressure signal is completely received thereby.Type: ApplicationFiled: May 15, 2007Publication date: November 15, 2007Applicants: DENSO CORPORATION, NIPPON SOKEN, INC.Inventors: Takashi Saitou, Akira Takaoka, Nobuya Watabe, Hideki Saito, Tomohiro Kuno
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Publication number: 20070229380Abstract: The present invention provides inexpensively a planar antenna module that is able to realize a loss reduction, a reduction in characteristic variation caused by an assembling error, and an improved stability in frequency characteristics. A planar antenna module according to one preferred embodiment of the present invention comprises an antenna portion (101), a feeder portion (102), and a connection plate (18). The antenna portion (101) includes a first ground plate (11) having a first slot (21), a second ground plate (12) having dielectrics, an antenna substrate having a radiation element (41), a third ground plate (13) having dielectrics, a fourth ground plate (14). The feeder portion (102) includes the fourth ground plate (14), a fifth ground plate (15), a feed substrate (50), a sixth ground plate (16), a seventh ground plate (17). The connection plate (18) has a second waveguide opening portion (64).Type: ApplicationFiled: October 25, 2005Publication date: October 4, 2007Inventors: Masahiko Oota, Hisayoshi Mizugaki, Keisuke Iijima, Takashi Saitou, Masaya Kirihara
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Publication number: 20070222571Abstract: A batteryless tire inflation pressure detecting apparatus includes, on the body of a vehicle, antennas and a transmitter transmitting radio waves through the antennas. The apparatus also includes, on each wheel of the vehicle, a pressure sensor sensing the pressure of a tire, a transceiver, and a charging unit powering the pressure sensor and the transceiver. The charging unit is charged with electric power induced by a corresponding one of the radio waves received by the transceiver. The apparatus further includes, on the body of the vehicle, a receiver receiving pressure signals transmitted by the transceivers, a pressure determiner determining the pressures of the tires based on the pressure signals, and a controller. To minimize influence of the radio waves on neighboring devices, the controller controls the transmitter so that least two of the radio waves are transmitted at different times, or at the same with a phase difference therebetween.Type: ApplicationFiled: March 21, 2007Publication date: September 27, 2007Applicants: DENSO CORPORATION, NIPPON SOKEN, INC.Inventors: Takashi Saitou, Akira Takaoka, Nobuya Watabe, Hideki Saito, Tomohiro Kuno
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Patent number: 7271710Abstract: A tire inflation pressure sensing apparatus includes a transmitter provided on a wheel of a vehicle and a receiver provided on a body of the vehicle. The transmitter includes a pressure sensor working to generate a pressure signal and a charging unit configured to be charged with electrical power via a radio wave from the receiver. The transmitter is configured to be triggered to send out the pressure signal by a change of operation of the receiver from an ON-mode, in which the receiver sends out the radio wave, to an OFF-mode in which that stops sending out the radio wave. The receiver works to change the operation thereof alternately between the ON-mode and OFF-mode in accordance with predefined processes, so that reliable transmissions of both the radio wave and the pressure signal between the transmitter and receiver are ensured without determining the relative position of the transmitter and receiver.Type: GrantFiled: May 19, 2005Date of Patent: September 18, 2007Assignees: DENSO CORPORATION, Nippon Soken, Inc.Inventors: Takashi Saitou, Yoshinori Hanai, Akira Takaoka
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Publication number: 20050258953Abstract: A tire inflation pressure sensing apparatus includes a transmitter provided on a wheel of a vehicle and a receiver provided on a body of the vehicle. The transmitter includes a pressure sensor working to generate a pressure signal and a charging unit configured to be charged with electrical power via a radio wave from the receiver. The transmitter is configured to be triggered to send out the pressure signal by a change of operation of the receiver from an ON-mode, in which the receiver sends out the radio wave, to an OFF-mode in which that stops sending out the radio wave. The receiver works to change the operation thereof alternately between the ON-mode and OFF-mode in accordance with predefined processes, so that reliable transmissions of both the radio wave and the pressure signal between the transmitter and receiver are ensured without determining the relative position of the transmitter and receiver.Type: ApplicationFiled: May 19, 2005Publication date: November 24, 2005Applicants: DENSO CORPORATION, NIPPON SOKEN, INC.Inventors: Takashi Saitou, Yoshinori Hanai, Akira Takaoka
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Patent number: 6960841Abstract: A passenger detection system is presented so that the master control circuit in the system instructs the passenger airbag control circuit controlling the operation of the airbag designated for the passenger seat to be in the deployable state or not-deployable state, depending on the seating conditions of a passenger sitting on the passenger seat, for example whether the passenger is an adult or a child.Type: GrantFiled: February 19, 2003Date of Patent: November 1, 2005Assignee: Honda Elesys Co., Ltd.Inventors: Takashi Saitou, Masahiro Ofuji, Yoshitaka Oka, Kazunori Jinno
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Patent number: 6794463Abstract: Block copolymer comprising at least two kinds of polymer components each having a different structural unit in the polymer selected from polyamide, polyester, polycarbonate and polyarylate. The present block copolymer has a distinguished moldability and can be produced even from rework products or recycle products in a simple and economical manner.Type: GrantFiled: September 27, 2002Date of Patent: September 21, 2004Assignee: Asahi Kasei Kabushiki KaishaInventors: Masaaki Aramaki, Takashi Saitou, Tomofumi Maekawa
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Publication number: 20030171494Abstract: Block copolymer comprising at least two kinds of polymer components each having a different structural unit in the polymer selected from polyamide, polyester, polycarbonate and polyarylate. The present block copolymer has a distinguished moldability and can be produced even from rework products or recycle products in a simple and economical manner.Type: ApplicationFiled: September 27, 2002Publication date: September 11, 2003Inventors: Masaaki Aramaki, Takashi Saitou, Tomofumi Maekawa
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Publication number: 20030151240Abstract: A passenger detection system is presented so that the master control circuit in the system instructs the passenger airbag control circuit controlling the operation of the airbag designated for the passenger seat to be in the deployable state or not-deployable state, depending on the seating conditions of a passenger sitting on the passenger seat, for example whether the passenger is an adult or a child.Type: ApplicationFiled: February 19, 2003Publication date: August 14, 2003Inventors: Takashi Saitou, Masahiro Ofuji, Yoshitaka Oka, Kazunori Jinno
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Patent number: 6559555Abstract: A passenger detection system is presented so that the master control circuit in the system instructs the passenger airbag control circuit controlling the operation of the airbag designated for the passenger seat to be in the deployable state or not-deployable state, depending on the seating conditions of a passenger sitting on the passenger seat, for example whether the passenger is an adult or a child.Type: GrantFiled: September 13, 1999Date of Patent: May 6, 2003Assignee: NEC CorporationInventors: Takashi Saitou, Masahiro Ofuji, Yoshitaka Oka, Kazunori Jinno