Patents by Inventor Hiroki Uemura

Hiroki Uemura 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).

  • Publication number: 20060169863
    Abstract: The seat face's position is adjusted by the position adjusting device in such a manner that the passenger's hip point Hpt lowers as the seat cushion is moved rearward, and the degree of the hip point lowering is configured such that the lowering degree of the hip point Hpt at the central section B is greater than that of the hip point lowering at the rear section C and the front section A that are located behind and before the central section C respectively. Accordingly, the proper sitting position to any passengers with different body sizes can be provided.
    Type: Application
    Filed: January 23, 2006
    Publication date: August 3, 2006
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Tomonori Ohtsubo, Hiroki Uemura, Naoki Yamada, Yasuhiko Miura
  • Publication number: 20060041359
    Abstract: The pedal adjusting devises and the floor adjusting device control pedals and the movable floor respectively according to the driver's body size detected, with first adjusting characteristic such that the pedals become closer to the driver and the movable floor goes up further, as the driver's body size detected becomes small, and with second adjusting characteristics, which are different from the first characteristics, for the driver having the relatively small body size whose body size detected is smaller than the specified body size. Accordingly, the arrangement positions of the pedals and the going-up-and-down position of the floor can be properly adjusted for drivers having different body sizes.
    Type: Application
    Filed: June 28, 2005
    Publication date: February 23, 2006
    Applicant: Mazda Motor Corporation
    Inventors: Tomonori Ohtsubo, Hiroki Uemura
  • Patent number: 6965623
    Abstract: In the semiconductor laser device of the present invention, a P-type diffusion region 3A is disposed in an N? epitaxial layer 2 of a silicon submount 16, and an N-type diffusion region 4A is disposed in this P-type diffusion region 3A. The P-type diffusion region 3A and the N-type diffusion region 4A are positioned under a red laser diode 14, and the red laser diode 14 is directly connected on the N-type diffusion region 4A via electrodes 7, 8 without an insulating film. Consequently, a short circuit between the red laser diode 14 and the silicon submount 16 can be prevented. Therefore, according to this semiconductor laser device, occurrence of deterioration or failure of a semiconductor light-emitting element upon a high-temperature operation can be prevented.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: November 15, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Miki Fujiyoshi, Hiroki Uemura
  • Publication number: 20050213958
    Abstract: In an embodiment of a flash apparatus, a semiconductor laser device is used as a flash-use light source. Laser light beams are approximately evenly scattered by a reflector plate whose reflection surface is formed of Ag coarse film, whereby illumination of a wide range and safety are secured. In an embodiment of the semiconductor laser device, the semiconductor laser device is disposed such that a longitudinal direction of an imaging area 20a of a camera and a wide direction of far-field patterns 11a1, 12a1 and 12b1 of laser light emitted from the semiconductor laser device match.
    Type: Application
    Filed: January 21, 2005
    Publication date: September 29, 2005
    Inventor: Hiroki Uemura
  • Publication number: 20050109555
    Abstract: There is provided a driver driving position adjusting device, comprising a movable floor panel adjusting mechanism operative to adjust at least a vertical position of a movable floor panel, an adjusting device operative to adjust at least one of a seat face position of a driver seat, an operating angle of the pedal operated by the leg portion of the driver and a position of a steering, and a driving position adjusting operating device operative to operate the movable floor panel adjusting mechanism and the adjusting device. Accordingly, the proper driving position and pedal operation can be provided regardless of the body size of driver, by adjusting at least the vertical position of the movable floor panel on which the leg portion of the driver operating the pedal is placed.
    Type: Application
    Filed: October 20, 2004
    Publication date: May 26, 2005
    Applicant: Mazda Motor Corporation
    Inventors: Tomonori Ohtsubo, Hiroki Uemura
  • Patent number: 6873581
    Abstract: The semiconductor laser device includes a signal light diffraction grating, and a light receiving portion having a pair of photodiodes extending as two strips with a parting portion or a zonal gap interposed therebetween and receiving a focus error detecting beam from the signal light diffraction grating. The light receiving portion is arranged such that its longitudinal direction is orthogonal to the direction of diffraction grooves of the signal light diffraction grating. The pair of photodiodes is arranged such that a spot of the focus error detecting beam moves, due to temperature changes, in a range essentially limited to the parting portion therebetween. Thus, a semiconductor laser device and an optical pickup apparatus suppressing focus errors due to temperature changes and preventing reduction in signal strength can be obtained.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: March 29, 2005
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hiroki Uemura
  • Publication number: 20030133481
    Abstract: In the semiconductor laser device of the present invention, a P-type diffusion region 3A is disposed in an N− epitaxial layer 2 of a silicon submount 16, and an N-type diffusion region 4A is disposed in this P-type diffusion region 3A. The P-type diffusion region 3A and the N-type diffusion region 4A are positioned under a red laser diode 14, and the red laser diode 14 is directly connected on the N-type diffusion region 4A via electrodes 7, 8 without an insulating film. Consequently, a short circuit between the red laser diode 14 and the silicon submount 16 can be prevented. Therefore, according to this semiconductor laser device, occurrence of deterioration or failure of a semiconductor light-emitting element upon a high-temperature operation can be prevented.
    Type: Application
    Filed: November 27, 2002
    Publication date: July 17, 2003
    Inventors: Miki Fujiyoshi, Hiroki Uemura
  • Patent number: 6538622
    Abstract: When the vehicle is traveling on a motorway, a display control module of a display controller determines that an obstacle is unlikely to be present, and restricts the display pattern of a sensed image sensed of an image sensing device to be displayed on a display device. Even when the vehicle is traveling on the motorway, if no stalled vehicle is detected, the display control module displays the sensed image without restricting it, thereby supporting drive operation of the driver.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: March 25, 2003
    Assignee: Mazda Motor Corporation
    Inventors: Koichi Kojima, Hiroki Uemura, Hidekazu Sasaki, Ayumu Doi
  • Publication number: 20020064107
    Abstract: The semiconductor laser device includes a signal light diffraction grating, and a light receiving portion having a pair of photodiodes extending as two strips with a parting portion or a zonal gap interposed therebetween and receiving a focus error detecting beam from the signal light diffraction grating. The light receiving portion is arranged such that its longitudinal direction is orthogonal to the direction of diffraction grooves of the signal light diffraction grating. The pair of photodiodes is arranged such that a spot of the focus error detecting beam moves, due to temperature changes, in a range essentially limited to the parting portion therebetween. Thus, a semiconductor laser device and an optical pickup apparatus suppressing focus errors due to temperature changes and preventing reduction in signal strength can be obtained.
    Type: Application
    Filed: November 26, 2001
    Publication date: May 30, 2002
    Inventor: Hiroki Uemura
  • Patent number: 6327522
    Abstract: In a display apparatus for a vehicle, when an auto mode is selected, an obstacle closest to the vehicle is determined on the basis of data that represents an output signal from an obstacle sensor, the determined obstacle and a radiation heat source (pixel group) included in an image sensed by an infrared light camera are associated with each other, and only an image corresponding to the obstacle closest to the vehicle is displayed on a display (FIG. 2, S5-S7).
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: December 4, 2001
    Assignee: Mazda Motor Corporation
    Inventors: Koichi Kojima, Hiroki Uemura, Hidekazu Sasaki, Ayumu Doi
  • Patent number: 5805103
    Abstract: A distance monitoring system of a vehicle monitors a distance to a preceding vehicle traveling directly ahead of the vehicle to determines whether the preceding vehicle is decelerating by comparing a change in the vehicle speed with a reference value which is varied according to various driving condition in relation in particular to dangers such as collisions against the preceding vehicle.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: September 8, 1998
    Assignee: Mazda Motor Corporation
    Inventors: Ayumu Doi, Hiroki Uemura, Yasunori Yamamoto, Tomohiko Adachi, Tohru Yoshioka
  • Patent number: 5680097
    Abstract: When information of an obstacle is not outputted from a radar device, a presumption device presumes at least a present value of a distance between a vehicle and the obstacle based on information in a memory part obtained until the time, and a contact-possibility judgment device judges a possibility of contact of the vehicle with the obstacle based on the information from the presumption device. A detection device is provided for detecting conditions at the time when the information of the obstacle is not outputted from the radar device, for example, a relation of relative position of the obstacle to the vehicle. Further, a restriction device is provided for restricting the presumption by the presumption device according to the relation of relative position. Thus, a possibility of contact of the vehicle with the obstacle running forward of the vehicle is appropriately judged and mis-operations of an alarm, an automatic braking and the like are prevented, while ensuring running safety.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: October 21, 1997
    Assignee: Mazda Motor Corporation
    Inventors: Hiroki Uemura, Tadayuki Niibe, Ayumu Doi, Tohru Yoshioka, Ken-ichi Okuda, Yasunori Yamamoto, Satoshi Morioka, Tomohiko Adachi
  • Patent number: 5585798
    Abstract: An obstacle detection system for an automotive vehicle detects obstacles ahead of the vehicle and finds the dynamic relativity between the vehicle and each of the obstacles. Based on the dynamic relativity, information relating to a danger level between the vehicle and each obstacle is operated on so as to make a danger judgement. A frequency, at which the operations on the information relating to danger level are made, is increasingly or decreasingly varied according to the danger levels of the obstacles.
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: December 17, 1996
    Assignee: Mazda Motor Corporation
    Inventors: Tohru Yoshioka, Hiroki Uemura, Tadayuki Niibe, Ayumu Doi, Kenichi Okuda, Yasunori Yamamoto, Tomohiko Adachi, Naotsugu Masuda
  • Patent number: 5540298
    Abstract: An integrated controller for a vehicle comprises a contact preventive device for detecting a distance between a vehicle and an obstacle and a relative speed, and deciding whether the vehicle may come in contact with the obstacle based on the results of detection so as to perform automatic braking or automatic steering, and a characteristic changing device for causing the suspension or steering characteristic of the vehicle to be changed. The control part of the characteristic changing device changes the suspension or steering characteristic based on information from the control part of the contact preventive device when operating the contact preventive device. In case the characteristic changing device is an active suspension device, the control part changes the suspension characteristic so as to increase a control gain when performing automatic braking and to inhibit the vehicle from being rolled when performing automatic steering.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: July 30, 1996
    Assignee: Mazda Motor Corporation
    Inventors: Tohru Yoshioka, Kenichi Okuda, Hiroki Uemura, Yasunori Yamamoto, Tomohiko Adachi, Tetsuro Butsuen, Toshihiro Hara, Kazuki Fujise
  • Patent number: 5530651
    Abstract: The vehicle is provided with a radar unit for detecting an obstacle existing ahead in the course of the running way along which the vehicle is running. When the radar unit detects a variation in its detectable region, such as a detectable distance or a detectable area range in left and right directions, from the detectable region to be detectable during ordinary running, a safety unit such as an alarm unit or an automatic brake unit is operated. A control logic for operating a collision-avoiding system for avoiding a collision with the obstacle existing ahead, such as an alarm unit or an automatic brake unit, is altered to a safe side on which safety in driving the vehicle is improved, when the detectable region is varied.
    Type: Grant
    Filed: August 3, 1993
    Date of Patent: June 25, 1996
    Assignee: Mazda Motor Corporation
    Inventors: Hiroki Uemura, Tetsuro Butsuen, Tohru Yoshioka, Ayumu Doi, Naotsugu Masuda, Kenichi Okuda, Tadayuki Niibe, Yasunori Yamamoto, Satoshi Morioka, Tomohiko Adachi
  • Patent number: 5495254
    Abstract: A method to determine a horizontal error of a radar device mounted on a vehicle along with the mounting error or imbalance in the diameters of wheels based on an echo signal from a reflector provided on a road. A vehicle's traveling locus is stored in advance as a reference locus obtained from the distance L between the vehicle and reflector and the direction .theta..sub.R. A traveling locus when the vehicle is actually traveling in a straight line where the steering handle is kept in a neutral position is compared with the previously stored reference locus. A horizontal error is obtained from the traveling locus on the coordinate axis .theta..sub.R and the shift from the reference locus.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: February 27, 1996
    Assignee: Mazda Motor Corporation
    Inventors: Hiroki Uemura, Tadayuki Niibe, Ayumu Doi, Tohru Yoshioka, Ken-ichi Okuda, Yasunori Yamamoto, Satoshi Morioka, Tomohiko Adachi
  • Patent number: 5483453
    Abstract: When the vehicle has deviated or is deviating from a lane on which the vehicle has been or is running, the deviation of the vehicle from the lane can be suppressed, for example, by allowing the steering wheel to be operatively rotated prior to an intention of the operator. The timing of suppressing the deviation of the vehicle can be altered in accordance with conditions including, for example, the existence of a lane in the direction of deviation of the vehicle on which another vehicle is running in the same direction, the existence of an obstacle in the direction of deviation of the vehicle, the existence of an adjacent lane in the direction of deviation of the vehicle on which another vehicle is running in the opposite direction, a state of the lane on which the vehicle is running, such as a curved lane or a straight lane, a direction of deviation is outside or inside the curved lane or a lane width, a vehicle speed, a steering angle of a steering wheel, an extent of vision, and so on.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: January 9, 1996
    Assignee: Mazda Motor Corporation
    Inventors: Hiroki Uemura, Tetsuro Butsuen, Tohru Yoshioka, Ayumu Doi, Kenichi Okuda, Yasunori Yamamoto, Tomohiko Adachi, Naotsugu Masuda
  • Patent number: 5467284
    Abstract: An obstacle detection apparatus for a motor vehicle detects another vehicle traveling in front of the vehicle as an obstacle. The apparatus has a first unit, providing a course on which the vehicle is supposed to travel, a second unit, providing a reserve course located outside of the course, an obstacle detector detecting the other vehicle traveling in the course or the reserve course as an obstacle, and an obstacle detection continuation unit continuously detecting the other vehicle until a predetermined condition has been satisfied when the other vehicle moves from the course to the reserve course.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: November 14, 1995
    Assignee: Mazda Motor Corporation
    Inventors: Tohru Yoshioka, Hiroki Uemura, Tadayuki Niibe, Ayumu Doi, Ken-ichi Okuda, Yasunori Yamamoto, Tomohiko Adachi, Naotsugu Masuda
  • Patent number: 5467283
    Abstract: An obstacle sensing apparatus for vehicles is provided in which detection of obstacles is performed efficiently by predicting the traveling path of the vehicle appropriately when detection of obstacles by a radar unit is limited to a region along the traveling path. The apparatus is provided with a radar unit for transmitting radar waves ahead of the vehicle and sensing obstacles present ahead of the vehicle, a steering angle sensor for sensing the steering angle of the vehicle, and a yaw rate sensor for sensing the yaw rate produced by the vehicle. First traveling-path predicting device predicts a traveling path of the vehicle based upon the steering angle, and second traveling-path predicting device predicts a traveling path of the vehicle based upon the yaw rate. One of these traveling paths is selected in dependence upon the operating state of the vehicle and detection of articles by the radar unit is carried out within a limited region along the traveling path selected.
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: November 14, 1995
    Assignee: Mazda Motor Corporation
    Inventors: Tetsuro Butsuen, Tohru Yoshioka, Hiroki Uemura, Tadayuki Niibe, Ayumu Doi, Ken-ichi Okuda, Tomohiko Adachi, Satoshi Morioka
  • Patent number: 5332056
    Abstract: An automatic braking system for a motor vehicle includes a sensor for detecting a distance and a relative speed between the vehicle and an obstacle in front of the vehicle. A judging device for judging an alarm sounding region and a region in which the vehicle has a possibility of contact with the obstacle, based on the detected distance and the relative speed and an automatic brake for automatically braking respective wheels when the judging device judges the region in which the vehicle has a possibility of the contact with the obstacle are provided. The automatic brake incudes a vacuum type booster which has a first chamber to which negative pressure is introduced and a second chamber to which atmospheric pressure is introduced. The first chamber is connected to the down stream portion, from a throttle valve, in an intake path of an engine. The booster uses a pressure difference between the negative pressure and the atmospheric pressure.
    Type: Grant
    Filed: January 28, 1993
    Date of Patent: July 26, 1994
    Assignee: Mazda Motor Corporation
    Inventors: Tadayuki Niibe, Hiroki Uemura, Tohru Yoshioka