Patents by Inventor Kouji Sakai
Kouji Sakai 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: 20080228367Abstract: In a four wheel simultaneous control mode when a regeneration cooperative braking is implemented, a pair of electromagnetic control valves 17A, 17B and one of normally closed electromagnetic valves 19FL, 19FR corresponding to regeneration side left and right wheel brakes 5FL, 5FR and normally closed electromagnetic valves 19RL, 19RR corresponding to non-regeneration side left and right wheel brakes 5RL, 5RR are caused to operate to open and close, while the other of the normally closed electromagnetic valves 19FL, 19FR corresponding to the regeneration side left and right wheel brakes 5FL, 5FR and the normally closed electromagnetic valves 19RL, 19RR corresponding to the non-regeneration side left and right wheel brakes 5RL, 5RR are put in inoperative states in which the valves concerned are kept closed, and all normally open electromagnetic valves 18FL, 18RR, 18FR, 18RL are put in inoperative states in which the valves concerned are kept opened.Type: ApplicationFiled: March 14, 2008Publication date: September 18, 2008Applicants: Honda Motor Co., Ltd., Nissin Kogyo Co., Ltd.Inventors: Yasushi Aoki, Jiro Suzuki, Kouji Sakai
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Publication number: 20080135362Abstract: A shock absorber includes a cylinder tube, a piston fitted slidably in an axial direction in the cylinder tube and arranged to divide an inside of the cylinder tube into first and second fluid chambers, a piston rod extending from the piston to an outside of the cylinder tube, and damping force generation sections arranged to generate a damping force by making hydraulic fluid flow between the first and the second fluid chambers. Cavities are formed in at least one of the cylinder tube and the piston rod. Flowable matter having a rheological characteristic is sealed in the cavities.Type: ApplicationFiled: December 6, 2007Publication date: June 12, 2008Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Kouji Sakai, Takashi Kawai, Naoki Onda
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Publication number: 20080022770Abstract: A semiconductor acceleration sensor having beam parts formed in substantially L-shape to surround a weight part, wherein formed to surround a square part, as seen in plan view and constituting the weight part, are two elongated L-shaped beam parts, at locations close to proximal end portions of which are formed protruding portions protruding from a fixed part toward the weight part, and receiving recessed portions protruding from the weight part toward the fixed part to surround the protruding portions. The protruding portions have an outer shape substantially the same as an inner wall surface of the receiving recessed portions so that movements of the weight part in any directions in a horizontal direction perpendicular to an up and down direction are limited as a result of reception of the protruding portions by the receiving recessed portions.Type: ApplicationFiled: January 20, 2006Publication date: January 31, 2008Inventors: Yoshihisa Fukuda, Kouji Sakai, Atsushi Ishigami, Eiichi Furukubo, Ryosuke Meshii, Takashi Yajima
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Publication number: 20070176249Abstract: In a semiconductor physical quantity sensor of electrostatic capacitance type, mutually facing peripheral areas (bonding areas) of a glass substrate and a silicon substrate are contacted for anodic bonding, while at the same time, both substrates have an anodic bonding voltage applied therebetween so as to be integrated. A fixed electrode is formed on a bonding face-side surface of the silicon substrate, while a movable electrode is formed on a bonding face-side surface of the semiconductor substrate. An equipotential wiring, which short-circuits the fixed electrode to the movable electrode as a countermeasure to discharge in anodic bonding, is formed on the bonding face-side surface of the glass substrate inside the bonding area before the anodic bonding. After the anodic bonding, the equipotential wiring is cut and removed.Type: ApplicationFiled: December 12, 2005Publication date: August 2, 2007Applicant: MATSUSHITA ELECTRIC WORKS, LTD.Inventors: Ryosuke Meshii, Kouji Sakai, Atsushi Ishigami, Eichi Furukubo
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Patent number: 7243561Abstract: A sensor unit includes a pressure sensor, an acceleration sensor and a signal-processing circuit, which are disposed on the bottom surface of a lead to form a line in the longitudinal direction of the sensor unit. The pressure sensor and the acceleration sensor are disposed at respective symmetrical positions with respect to the center of the signal-processing circuit in the longitudinal direction of the sensor unit. Each of the pressure sensor and the acceleration sensor has substantially the same height dimension. The sensors, the signal-processing circuit and the lead are sealed with a molded body, in such a manner as to allow lead terminals of the lead to protrude outside the molded body. The signal-processing circuit is operable, based on a signal from the acceleration sensor, to control the ON/OFF action of the pressure sensor.Type: GrantFiled: August 26, 2004Date of Patent: July 17, 2007Assignee: Matsushita Electric Works, Ltd.Inventors: Atsushi Ishigami, Kouji Sakai, Ryosuke Meshii
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Publication number: 20060250201Abstract: The micro relay of the present invention comprises a base substrate 3, an armature block 5, and a cover 7. The base substrate 3 has a storage recess 41 for accommodating an electromagnetic device 1. The storage recess is composed of a hole 41a penetrating the base substrate 3 and a thin storage recess lid fixed on the one surface of the base substrate to close the hole. The electromagnetic device 1 is isolated from a contact mechanism by the storage recess lid 41b to increase the reliability of the contacts. The electromagnetic device 1 includes a yoke 10, a coil 11 wound around the yoke to generate a flux in response to an exciting current, and a permanent magnet 12 secured to the yoke to generate a flux flowing through an armature 51 and the yoke 10. Because the permanent magnet 12 is secured to the yoke 10, this micro relay can reduce the thickness.Type: ApplicationFiled: January 25, 2005Publication date: November 9, 2006Inventors: Takeshi Hashimoto, Noriteru Furumoto, Naoki Okumura, Hideki Enomoto, Takeshi Sadamori, Shinichi Kishimoto, Tsutomu Shimomura, Kouji Sakai, Masami Hori
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Patent number: 7131654Abstract: A vehicle is carried by a number of supporting members, such as wheels. Movement between the supporting members and the vehicle body is controlled by respective dampers. Several interrelationships between and among the dampers are disclosed. A flow regulator is provided to augment damping forces under a variety of operating conditions.Type: GrantFiled: November 2, 2004Date of Patent: November 7, 2006Assignee: Yamaha Hatsuboki Kabushiki KaishaInventor: Kouji Sakai
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Patent number: 7102473Abstract: This micro relay comprises a body 1, a cover 4, an armature block 3. The body 1, which is made of silicon or glass, has an electromagnetic mechanism 2. The cover 4 is also made of silicon or glass. The armature block 3 is made of silicon. The armature block 3 is composed of an armature base 30 and a frame 31. The frame 31 surrounds an entire circumference of the armature base 30 and supports the armature base 30 pivotally. The armature base 30 is cooperative with a magnetic material 32 on a surface of the armature base 30 to define an armature 300. A fixed contacts 14A, 14B, 15A, 15B and movable contacts 33A, 33B are selectively closed and opened by a pivot motion of the armature 300. And, the frame 31 is directly bonded over its entire circumference to a periphery 19 of the body 1 and to a periphery 41 of the cover 4 to define a sealed space surrounded by the frame 31 and closed between the body 1 and the cover 4 for accommodating the armature 300 and the fixed contacts and the movable contacts.Type: GrantFiled: July 31, 2003Date of Patent: September 5, 2006Assignee: Matsushita Electric Works, Ltd.Inventors: Kouji Sakai, Hideki Enomoto, Naoki Okumura, Tsutomu Shimomura, Masami Hori
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Publication number: 20060151270Abstract: A pair of damping hydraulic cylinders can be provided on a vehicle body. A first oil chamber and a second oil chamber are in communication with upper oil chambers of the hydraulic cylinders. A bypass passage for allowing communication between the oil chambers is provided separately from both a first communication passage and a second communication passage of a second piston having a throttle.Type: ApplicationFiled: December 13, 2005Publication date: July 13, 2006Inventors: Kouji Sakai, Seiji Sawai
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Publication number: 20060053908Abstract: A sensor unit includes a pressure sensor, an acceleration sensor and a signal-processing circuit, which are disposed on the bottom surface of a lead to form a line in the longitudinal direction of the sensor unit. The pressure sensor and the acceleration sensor are disposed at respective symmetrical positions with respect to the center of the signal-processing circuit in the longitudinal direction of the sensor unit. Each of the pressure sensor and the acceleration sensor has substantially the same height dimension. The sensors, the signal-processing circuit and the lead are sealed with a molded body, in such a manner as to allow lead terminals of the lead to protrude outside the molded body. The signal-processing circuit is operable, based on a signal from the acceleration sensor, to control the ON/OFF action of the pressure sensor.Type: ApplicationFiled: August 26, 2004Publication date: March 16, 2006Inventors: Atsushi Ishigami, Kouji Sakai, Ryosuke Meshii
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Publication number: 20050156696Abstract: This micro relay comprises a body 1, a cover 4, an armature block 3. The body 1, which is made of silicon or glass, has an electromagnetic mechanism 2. The cover 4 is also made of silicon or glass. The armature block 3 is made of silicon. The armature block 3 is composed of an armature base 30 and a frame 31. The frame 31 surrounds an entire circumference of the armature base 30 and supports the armature base 30 pivotally. The armature base 30 is cooperative with a magnetic material 32 on a surface of the armature base 30 to define an armature 300. A fixed contacts 14A, 14B, 15A, 15B and movable contacts 33A, 33B are selectively closed and opened by a pivot motion of the armature 300. And, the frame 31 is directly bonded over its entire circumference to a periphery 19 of the body 1 and to a periphery 41 of the cover 4 to define a sealed space surrounded by the frame 31 and closed between the body 1 and the cover 4 for accommodating the armature 300 and the fixed contacts and the movable contacts.Type: ApplicationFiled: July 31, 2003Publication date: July 21, 2005Inventors: Kouji Sakai, Hideki Enomoto, naoki Okumura, Tsutomu Shimomura, Masami Hori
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Publication number: 20050087411Abstract: A vehicle is carried by a number of supporting members, such as wheels. Movement between the supporting members and the vehicle body is controlled by respective dampers. Several interrelationships between and among the dampers are disclosed. A flow regulator is provided to augment damping forces under a variety of operating conditions.Type: ApplicationFiled: November 2, 2004Publication date: April 28, 2005Inventor: Kouji Sakai
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Patent number: 6811171Abstract: A vehicle is carried by a number of supporting members, such as wheels. Movement between the supporting members and the vehicle body is controlled by respective dampers. Several interrelationships between and among the dampers are disclosed. A flow regulator is provided to augment damping forces under a variety of operating conditions.Type: GrantFiled: January 11, 2001Date of Patent: November 2, 2004Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Kouji Sakai
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Patent number: 6611743Abstract: A motorcycle suspension system, which permits, interrelated front and rear shock absorbers of different physical characteristics and having different loading factors. However, an interrelated control is provided for balancing these differences and for providing good dive and squat control without bouncing. In addition, an improved arrangement for testing the cylinder of a hydraulic shock absorber is disclosed.Type: GrantFiled: November 13, 2001Date of Patent: August 26, 2003Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Kouji Sakai
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Patent number: 6598891Abstract: A number of embodiments of four-wheeled vehicle suspension systems have interrelated front and rear shock absorbers so as to provide good control under normal suspension travel as well as resistance toward leaning, pitching, diving and squatting. In each embodiment, the normal fluid dampers having only a single shock absorber valve therein are interrelated with pressure controls that comprise four hydraulic cylinder portions which communicate with each other through various paired arrangements so as to provide this control and simplification of damping.Type: GrantFiled: November 13, 2001Date of Patent: July 29, 2003Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Kouji Sakai
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Patent number: 6595533Abstract: A number of embodiments of reinforcing arrangements for vehicle bodies wherein the suspension forces for the ground engaging element are transmitted to the vehicle body and reinforcement is provided in this area. Rather than providing rigid reinforcement, as with the prior art, various forms of damping arrangements are disclosed including those which permit different damping in one direction from the other and utilizing either elastic or hydraulic viscous type dampers.Type: GrantFiled: November 6, 2001Date of Patent: July 22, 2003Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Seiji Sawai, Kouji Sakai
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Publication number: 20030132072Abstract: In one embodiment, a suspension system includes a hydraulic assembly. A cylindrical spacer is attached to the hydraulic assembly. An annular seating member is removably coupled to the cylindrical spacer and supports a biasing member. In another embodiment, the annular seating member is coupled to the hydraulic assembly. A support member is removably coupled to the cylindrical assembly.Type: ApplicationFiled: April 25, 2002Publication date: July 17, 2003Inventors: Seiji Sawai, Kouji Sakai
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Patent number: 6556907Abstract: A vehicle suspension system comprises at least a pair of interrelated damper units. The units communicate with one another through a pressure regulating unit. The pressure regulating unit comprises a pair of chambers that are connected with a bypass passage. Two throttle valves are disposed along the bypass passage. The sizing of various components are calculated based on a number of relationships set forth in equalities that match damping whether under acceleration type forces or deceleration forces.Type: GrantFiled: November 10, 2000Date of Patent: April 29, 2003Assignee: Yamaha Hatsudoki Kabushiki KaishaInventor: Kouji Sakai
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Patent number: 6491578Abstract: In a vehicle air conditioner, each of cool air outlets is provided at an upper side of each seat at second and third seat lines from a most front seat so that cool air from an air conditioning unit is blown from the cool air outlets toward upper sides of the seats, respectively, and each of warm air outlets is provided at a lower side of each seat at the second and third seat lines so that warm air from the air conditioning unit is blown from the warm air outlets toward lower sides of the seats, respectively. In addition, each of suction ports is provided for each corresponding seat at the second and third seat lines so that air inside a passenger compartment is sucked from the suction ports to be returned to the air conditioning unit.Type: GrantFiled: March 28, 2001Date of Patent: December 10, 2002Assignee: Denso CorporationInventors: Takeshi Yoshinori, Kouji Sakai, Shinji Aoki, Yuichi Kajino
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Patent number: 6491577Abstract: A sitting position of a vehicle occupant in the longitudinal direction of a vehicle is detected, an outlet close to the sitting position of the occupant from plural outlets and is selected based on the detected sitting position, and air is blown out from the selected outlet toward the occupant's sitting position. Thus, since an outlet close to the occupant's sitting position is selected, it becomes easier for air to reach the vehicle occupant to sufficiently cool or warm the occupant with a small amount of blown out air.Type: GrantFiled: July 27, 2001Date of Patent: December 10, 2002Assignee: Denso CorporationInventors: Takeshi Yoshinori, Shinji Aoki, Yuichi Kajino, Kouji Sakai