Patents by Inventor Tatsuya Yoshida
Tatsuya 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: 5832397Abstract: An integrated wiring system for controlling multiple vehicle systems comprising a plurality of terminal control units having different information processing speed and a central control unit. A communications interface is provided in the central control unit in the form of a dedicated programmable input/output processor for performing data communication based on a plurality of communication protocols.Type: GrantFiled: October 4, 1995Date of Patent: November 3, 1998Assignee: Hitachi, Ltd.Inventors: Tatsuya Yoshida, Shigeru Oho
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Patent number: 5744874Abstract: A car remote control system utilizing a signal in the form of electromagnetic wave or infrared ray called `keyless entry`. When receiving a predetermined wake-up signal, an MPU is once operated even when the received input signal is a noise signal to perform only judging operation of whether or not the input signal is normal. Only when judging that the input signal is a normal wake-up signal, the MPU controllably causes an electronic circuit to be shifted to a usual operation mode. When judging that the input signal is the noise signal prior to full input of the tuner signal, the MPU immediately shifts to a sleep mode. Thereby current consumption of an electronic control circuit can be suppressed.Type: GrantFiled: May 22, 1996Date of Patent: April 28, 1998Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.Inventors: Tatsuya Yoshida, Mitsuru Kon'i
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Patent number: 5671466Abstract: A sheet guide mechanism is provided with a guide path along which a sheet-like member is guided and which is defined between one and the other guide surfaces. A stationary guide member has a first surface defining the one guide surface, and a movable guide member having a second surface defines the other guide surface, which is shiftable relative to the stationary guide member. Protrusions are formed on one of the first and second surfaces, protruding toward the other of the first and second surfaces by a predetermined distance. A shiftable member is shiftable relative to the stationary guide member between a guide position and a remote position. A spring is provided between the shiftable member and the movable guide member allowing the elastic contact between the protrusions and the other of the first and second surfaces, when the shiftable member is located in the guide position.Type: GrantFiled: January 5, 1995Date of Patent: September 23, 1997Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Satoshi Hokamura, Kazuhiro Ichinokawa, Takaaki Yano, Masatoshi Takano, Masakazu Hirano, Motohiro Maseki, Tatsuya Yoshida, Mikio Horie, Masami Shirai, Eiichi Ito, Kenichiro Otsuka
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Patent number: 5664542Abstract: On one side of a valve shaft, there are provided an accelerator drum connected to an accelerator pedal by an accelerator wire, a return spring for urging the accelerator drum in a valve closing direction, and an accelerator sensor for detecting rotation of the accelerator drum and transmitting a detected signal to a host system. On the other side of the valve shaft, there are provided a large-diameter gear and an opening sensor. An armature of a solenoid clutch is attached to the gear and held on a motor shaft via a slide bearing. Thus, the motor, the solenoid clutch and the throttle valve are arranged into a U-shaped form for interconnection through four gears.Type: GrantFiled: February 29, 1996Date of Patent: September 9, 1997Assignees: Hitachi, Ltd., Hitachi Automotive Engineering Co., Ltd.Inventors: Hiroshi Kanazawa, Fumio Tajima, Yasuhiko Honda, Yasushi Sasaki, Teruhiko Minegishi, Yoshikatu Hashimoto, Tatsuya Yoshida, Yuzo Kadomukai
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Patent number: 5649274Abstract: An electrophotographic printer is capable of using a plurality of types of continuous form recording media having different page lengths, respectively. In the printer, a photoconductive member is charged and exposed to light carrying image data to form a latent image. In operation, one of the plurality of types of recording media is selected, and a portion of the photoconductive member corresponding to a page of the selected one of the plurality of types of recording media is exposed to light. In another embodiment, a laser beam printer utilizes a continuous-form recording sheet, wherein two control members are provided for, respectively, controlling the recording sheet so as to be discharged from the printing device after a printing operation, and for controlling the recording sheet so as to be located at a position from which a printing operation is restarted. Thus, recording sheets are not wasted when printer output is started.Type: GrantFiled: June 20, 1996Date of Patent: July 15, 1997Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Ryoji Honda, Masahiro Kita, Ikuo Negoro, Tomoyuki Nishikawa, Takaaki Yano, Tatsuya Yoshida, Shoji Kamasako, Tsutomu Sato, Kiyoshi Negishi
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Patent number: 5565972Abstract: An electrophotographic printer is capable of using a plurality of types of continuous form recording media having different page lengths, respectively. In the printer, a photoconductive member is charged and exposed to light carrying image data to form a latent image. In operation, one of the plurality of types of recording media is selected, and a portion of the photoconductive member corresponding to a page of the selected one of the plurality of types of recording media is exposed to light. In another embodiment, a laser beam printer utilizes a continuous-form recording sheet, wherein two control members are provided for, respectively, controlling the recording sheet so as to be discharged from the printing device after a printing operation, and for controlling the recording sheet so as to be located at a position from which a printing operation is restarted. Thus, recording sheets are not wasted when printer output is started.Type: GrantFiled: May 27, 1992Date of Patent: October 15, 1996Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Ryoji Honda, Masahiro Kita, Ikuo Negoro, Tomoyuki Nishikawa, Takaaki Yano, Tatsuya Yoshida, Shoji Kamasako, Tsutomu Sato, Kiyoshi Negishi
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Patent number: 5528352Abstract: An electrophotographic apparatus is provided with an original separation mechanism which is disposed on a lower side of the inlet port of a feeding path. The original separation mechanism is pressed to an original pick-up roller, and is provided for separating one original, which contacts the original pick-up roller, from at least one following original. The original separation mechanism includes a unit body, and a friction member attached to the upper surface of a unit body, extending toward a downstream side of the feeding direction of the original so as to intersect the feed path at a predetermined angle, and having an upper surface with a prescribed friction coefficient. The original separation mechanism further includes a pair of supporting members attached to both sides of the unit body with respect to the friction member, and each formed of a spring material having an upper surface which extends so as to intersect the upper surface of the lower original guide member at a predetermined angle.Type: GrantFiled: March 6, 1995Date of Patent: June 18, 1996Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Kazuhiro Ichinokawa, Kenichiro Otsuka, Satoshi Hokamura, Eiichi Ito, Takaaki Yano, Masatoshi Takano, Masakazu Hirano, Motohiro Maseki, Tatsuya Yoshida, Mikio Horie, Masami Shirai
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Patent number: 5517966Abstract: On one side of a valve shaft, there are provided an accelerator drum connected to an accelerator pedal by an accelerator wire, a return spring for urging the accelerator drum in a valve closing direction, and an accelerator sensor for detecting rotation of the accelerator drum and transmitting a detected signal to a host system. On the other side of the valve shaft, there are provided a large-diameter gear and an opening sensor. An armature of a solenoid clutch is attached to the gear and held on a motor shaft via a slide bearing. Thus, the motor, the solenoid clutch and the throttle valve are arranged into a U-shaped form for interconnection through four gears.Type: GrantFiled: April 26, 1995Date of Patent: May 21, 1996Assignees: Hitachi, Ltd., Hitachi Automotive Engineering Co. Ltd.Inventors: Hiroshi Kanazawa, Fumio Tajima, Yasuhiko Honda, Yasushi Sasaki, Teruhiko Minegishi, Yoshikatu Hashimoto, Tatsuya Yoshida, Yuzo Kadomukai
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Patent number: 5467272Abstract: An integrated wiring system having a plurality of terminal control units and a central controlling unit (including computational processing means) for transferring information to and from the terminal control units. An input/output control unit is provided for executing communication control based on plural communication protocols with a plurality of different information processing speeds for communicating with the terminal control units. In a preferred embodiment, the input/output control units have a plurality of transmission controlling programs corresponding to the plurality of terminal control units, and the frequencies of execution of the respective terminal controlling programs are different from one another.Type: GrantFiled: January 21, 1994Date of Patent: November 14, 1995Assignee: Hitachi, Ltd.Inventors: Tatsuya Yoshida, Shigeru Oho
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Patent number: 5452697Abstract: A throttle valve control arrangement for an internal combustion engine comprising: a throttle valve; an electrical motor for actuating the throttle valve; mechanical links for coupling and decoupling the electrical motor with the throttle valve; a throttle position sensor for detecting a position of the throttle valve; and a control unit which compares an output signal from the throttle position sensor representing a detected throttle position with a signal representing a target throttle valve opening degree and generates a feed-back control signal for the electrical motor based on the comparison result, wherein the throttle position sensor shows a first output voltage characteristic with respect to throttle valve opening degrees for a first region covering ISC and FIC and a voltage gradient of the first output voltage characteristic is selected larger than that of an unmodified output voltage characteristic of the throttle position sensor, thereby a high resolution of the throttle position sensor is obtainedType: GrantFiled: September 17, 1993Date of Patent: September 26, 1995Assignees: Hitachi, Ltd., Hitachi Automotive Engineering Co., Ltd.Inventors: Yasushi Sasaki, Yoshikatu Hashimoto, Teruhiko Minegishi, Tatsuya Yoshida, Mitsuru Kon'i, Norihiro Isozaki
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Patent number: 5452072Abstract: An electrophotographic apparatus is provided with a photoconductive drum including an outer peripheral surface on which a latent image corresponding to an image to be transferred is formed, and a developing device for developing the latent image by a toner. The electrophotographic apparatus further includes a housing for rotatably supporting the photoconductive drum therein and having an opening on one side, a cover member for releasably closing the opening of the housing, and a transfer charger which is attached to one surface of the cover member opposing to the photoconductive drum, and which is provided for transferring the developed image onto a sheet-like member. A pre-roller is attached to an upstream end of a housing which houses the transfer charger. The pre-roller and the photoconductive drum are positioned relative to each other so that a gap of predetermined dimension is defined therebetween.Type: GrantFiled: June 2, 1994Date of Patent: September 19, 1995Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Kazuhiro Ichinokawa, Kenichiro Otsuka, Takaaki Yano, Masatoshi Takano, Satoshi Hokamura, Masakazu Hirano, Motohiro Maseki, Tatsuya Yoshida, Mikio Horie, Masami Shirai, Eiichi Ito
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Patent number: 5431141Abstract: On one side of a valve shaft, there are provided an accelerator drum connected to an accelerator pedal by an accelerator wire, a return spring for urging the accelerator drum in a valve closing direction, and an accelerator sensor for detecting rotation of the accelerator drum and transmitting a detected signal to a host system. On the other side of the valve shaft, there are provided a large-diameter gear and an opening sensor. An armature of a solenoid clutch is attached to the gear and held on a motor shaft via a slide bearing. Thus, the motor, the solenoid clutch and the throttle valve are arranged into a U-shaped form for interconnection through four gears.Type: GrantFiled: July 6, 1993Date of Patent: July 11, 1995Assignees: Hitachi, Ltd., Hitachi Automotive Engineering Co., Ltd.Inventors: Hiroshi Kanazawa, Fumio Tajima, Yasuhiko Honda, Yasushi Sasaki, Teruhiko Minegishi, Yoshikatu Hashimoto, Tatsuya Yoshida, Yuzo Kadomukai
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Patent number: 5361330Abstract: An image processing apparatus includes a window setting device for setting a portion of a written region of an image composed of dots in an orthogonal matrix as a window, and for moving the set portion within the written region. A first edge detecting device serves to detect differences between image data of a given dot in the window set by the window setting device and image data of dots neighboring the given dot, and serves to detect directions of the detected differences. A second edge detecting device serves to detect edges between neighboring dots other than the given dot, the detected edges relating to image data differences and image data difference directions respectively equal to the image data differences and the image data difference directions detected by the first edge detecting device.Type: GrantFiled: April 7, 1992Date of Patent: November 1, 1994Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shigehisa Fujisaki, Tadayuki Kajiwara, Yasuhiko Isobe, Takumi Shimokawa, Yoshinori Senju, Masanobu Narazaki, Tatsuya Yoshida, Atsushi Wakiyama
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Patent number: 5321479Abstract: An electrophotographic apparatus is provided with a control device for controlling the heating temperature of the fixing unit in accordance with the detected result by use of a condition detection mechanism. The control device controls the fixing unit: (a) to set the heating temperature thereof to a fixing possible temperature when the condition detection device detects that the imaging operation of the imaging device is initiated or has been continuing, (b) to set the heating temperature to a stand-by temperature lower than the fixing possible temperature when the condition detection device detects that a stand-by condition, in which the imaging operation is interrupted, continues for a first predetermined time, and (c) to set the heating temperature to a save-energy temperature, lower that the stand-by temperature, when the condition detection device detects that the stand-by condition has been continuing for a second predetermined time.Type: GrantFiled: March 24, 1993Date of Patent: June 14, 1994Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tatsuya Yoshida, Mikio Horie, Kazuhiro Ichinokawa, Tomoyuki Nishikawa, Takaaki Yano, Masatoshi Takano, Satoshi Hokamura, Masakazu Hirano, Motohiro Maseki, Masami Shirai, Eiichi Ito, Kenichiro Otsuka
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Patent number: 5255008Abstract: In a printing device such as a laser beam printer utilizing a continuous-form recording sheet, provided are feeding member for feeding the continuous-from recording sheet along a predetermined feeding path; forming member for forming the image on the continuous-form recording sheet having been fed by by the feeding member; detecting member for detecting a boundary on the continuous-form recording sheet fed by the feeding member between segments on which the image forming operation by the forming member has been executed and segments on which the image forming member is not executed; cutting member for cutting the continuous-form recording sheet is divided into two portions along the predetermined feeding path.Type: GrantFiled: October 28, 1991Date of Patent: October 19, 1993Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventor: Tatsuya Yoshida
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Patent number: 5148284Abstract: A data recovery device is employed in a printer using a continuous form recording medium for reprinting data after printing has been interrupted. In the data recovery device, the number of pages remaining in a predetermined area of the feed path of the recording medium is counted. A plurality of page buffers are sequentially read out and printed. The printing operation is controlled such that the one of the data storing means from which the data is read out and printed by the printing means is identified based on the number of the pages remaining in the predetermined area.Type: GrantFiled: November 13, 1990Date of Patent: September 15, 1992Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tomoyuki Nishikawa, Masahiro Kita, Takaaki Yano, Tatsuya Yoshida, Ryoji Honda, Kiyoshi Negishi, Tsutomu Sato, Shoji Kamasako
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Patent number: 5109255Abstract: A temperature control system is employed in a electrophotographic printer for controlling the temperature of a heat roller. In the system, the temperature of the heat roller is kept in a predetermined range of an operable range when printing is executed, and kept in a predetermined range of a standby range, which is lower than the operable range, when printing is unexecuted. The temperature of the heat roller is controlled to be raised up to the upper limit of the operable range before it is changed to be in the standby range when printing is terminated.Type: GrantFiled: November 13, 1990Date of Patent: April 28, 1992Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tomoyuki Nishikawa, Masahiro Kita, Takaaki Yano, Tatsuya Yoshida, Ryoji Honda, Kiyoshi Negishi, Tsutomu Sato, Shoji Kamasako
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Patent number: 5101228Abstract: A storage vessel detecting mechanism is used for detecting an error condition of a storage vessel, which is detachably fitted in a main apparatus. The vessel is movably fitted in the main apparatus, and one end of a movable member, which is pivoted, is engaged with the vessel. The other end of the movable member is located between first and second positions when the vessel is not installed and when the vessel is accommodating a predetermined amount of substances therein. It is determined whether the other end of the movable member is located in a predetermined range. An error condition of the vessel is detected when the other end of the movable member is located at a position other than in the predetermined range.Type: GrantFiled: November 13, 1990Date of Patent: March 31, 1992Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tomoyuki Nishikawa, Masahiro Kita, Takaaki Yano, Tatsuya Yoshida, Ryoji Honda, Kiyoshi Negishi, Ikuo Negoro, Tsutomu Sato, Shoji Kamasako
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Patent number: 5101239Abstract: In an electrophotographic printer, a toner image formed on a photoconductive member is transferred onto a recording medium by charging the recording medium and by making the charged recording medium contact the toner image formed on the photoconductive member. A transfer charger for charging the recording medium is arranged in such a fashion that the transfer charger faces the recording medium at the upstream-side portion, with respect to the feeding direction of the recording medium, of an area where the photoconductive member and the recording medium contact. Therefore, the recording medium is charged at the upstream side of the portion with respect to the lateral center of the portion where the recording medium and the image carrying means contact.Type: GrantFiled: November 13, 1990Date of Patent: March 31, 1992Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tomoyuki Nishikawa, Masahiro Kita, Takaaki Yano, Tatsuya Yoshida, Ryoji Honda, Kiyoshi Negishi, Tsutomi Sato, Shoji Kamasako
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Patent number: 5061957Abstract: A power controlling device capable of controlling the supply power to a drive system and to a control system for controlling the drive system. The power controlling device is provided with a main switch capable of turning on and turning off the power supplying device. When the power supplying device is turned off by the main switch, the drive system is turned off before the control system is turned off.Type: GrantFiled: November 13, 1990Date of Patent: October 29, 1991Assignee: Asahi Kogaku Kogyo Kabushiki KaishaInventors: Tomoyuki Nishikawa, Masahiro Kita, Takaaki Yano, Tatsuya Yoshida, Ryoji Honda, Kiyoshi Negishi, Tsutomu Sato, Shoji Kamasako