Patents by Inventor Toshiyuki Takahashi

Toshiyuki Takahashi 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: 20070189815
    Abstract: A method, apparatus, and program for driving a motor in a feedback control system, capable of suppressing oscillation of the motor are disclosed. A motor drive controller includes a drive motor, a detector, and a motor drive controller. The drive motor drives a moving body around a target moving speed. The detector detects a current moving speed of the moving body and output it as a detector pulse signal. The controller calculates a difference between the current moving speed and the target moving speed, calculates a control value based on the difference, calculates a pulse rate of a drive pulse signal based on the control value after having controlled the control value to be within a predetermined value, and feedback controls the drive motor based on the pulse rate.
    Type: Application
    Filed: April 25, 2007
    Publication date: August 16, 2007
    Inventors: Toshiyuki Andoh, Tadashi Shinohara, Yuuji Matsuda, Kazuhiko Kobayashi, Nobuto Yokokawa, Masato Yokoyama, Yohhei Miura, Toshiyuki Takahashi, Jun Hosokawa
  • Patent number: 7257339
    Abstract: An image forming apparatus including an image carrying member, a transfer member, support rollers, a detecting mechanism, and a controller. The image carrying member forms a toner image on its surface facing a surface of the transfer member, supported by the support rollers, which transfers the toner image to a recording medium. The detecting mechanism includes a detection roller, a roller shaft, a moving member, and a sensor, and detects a speed of the transfer member. The detection roller includes one support roller selected from the support rollers, and is provided with the roller shaft. The moving member is directly fixed to the roller shaft and rotates with the detection roller. The sensor detects a moving speed of the detection roller with the moving member. The controller controls a traveling speed of the transfer member to a target speed based on a detection result of the sensor.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: August 14, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Masato Yokoyama, Nobuto Yokokawa, Toshiyuki Ando, Kazuhiko Kobayashi, Tadashi Shinohara, Yuuji Matsuda, Jun Hosokawa, Yohhei Miura, Toshiyuki Takahashi, Hiromichi Matsuda
  • Publication number: 20070171235
    Abstract: A display unit has an image presentation section 10 for receiving a plurality of monomedia data and presentation style data describing a presentation style of a frame of each of the individual monomedia data, for generating scaling/combining control information 111 for combining the individual monomedia data, and for generating a composite video frame 103 by combining the individual monomedia data; an image enhancing section 20 for obtaining a correction target region of designated monomedia data in the composite video frame 103 in response to the scaling/combining control information 111, for generating correction data by obtaining interframe difference in the correction target region, and for generating a display video frame 104 by carrying out image enhancing processing of the correction target region in response to the correction data generated; and an image display section 30 for displaying the display video frame 104.
    Type: Application
    Filed: April 12, 2004
    Publication date: July 26, 2007
    Inventors: Yuka Fujita, Toshiyuki Takahashi, Atsushi Hori, Koichi Hiramatsu
  • Publication number: 20070167453
    Abstract: The invention provides a compound or its pharmaceutically-acceptable salt of formula wherein A1 is a hydrogen, etc.; j and k are 0 or 1; is a double bond, etc.; is a double bond, etc.; one of W1 and W2 is E-O—W, etc., and the other is a hydrogen atom, etc.; E is a divalent group derived from a benzene ring, etc., by removing two hydrogen atoms therefrom; W is a group of formula (II-1): which has a histamine-H3 receptor antagonistic effect or a histamine-H3 receptor inverse-agonistic effect and is useful for prevention or remedy of metabolic system diseases, circulatory system diseases or nervous system diseases.
    Type: Application
    Filed: February 17, 2005
    Publication date: July 19, 2007
    Inventors: Toshiyuki Takahashi, Akio Kunatani, Shigeru Tokita, Ryo Yoshimoto
  • Publication number: 20070051809
    Abstract: A reader/writer is provided. The reader/writer performing radio communication with a radio communication terminal in close proximity thereto, includes: an antenna which transmits a carrier wave of a predetermined frequency and which receives a composite wave of the carrier wave and a modulated signal of the carrier wave transmitted from the radio communication terminal; a demodulating unit which demodulates the composite wave received by the antenna; a judging unit which judges whether or not it is difficult to detect a modulated component included in the composite wave received by the antenna when the radio communication terminal is in close proximity; and a carrier-wave control unit which reduces a component of the carrier wave input into the demodulating unit when the judging unit judges that it is difficult to detect the modulated component.
    Type: Application
    Filed: August 28, 2006
    Publication date: March 8, 2007
    Applicant: SONY ERICSSON MOBILE COMMUNICATIONS JAPAN, INC.
    Inventors: Toshiyuki Takahashi, Kunitaka Ito, Kanjiro Shimizu
  • Patent number: 7174081
    Abstract: An optical waveguide device includes a first substrate, where the first substrate includes a first plate and an optical waveguide region disposed on the first plate, and where the optical waveguide region includes a core for transmitting light and a cladding surrounding the core. The optical waveguide device further includes a second substrate, where the second substrate includes a second plate having a spacer. Additionally, a surface including the optical waveguide region of the first substrate opposes a surface including the spacer of the second substrate, the spacer is formed the region which is out of the core of the first substrate, a top surface of the spacer is in contact with the first substrate, the first substrate and the second substrate are bound with adhesive material, and the entire surface of the core is in contact with the adhesive material.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: February 6, 2007
    Assignee: Omron Corporation
    Inventors: Kazuyuki Hayamizu, Yoshiyuki Komura, Yukari Terakawa, Hayami Hosokawa, Toshiyuki Takahashi, Masayoshi Higuchi, Yoshitaka Tatara, Naru Yasuda, Hiroto Nozawa
  • Patent number: 7155103
    Abstract: To provide an optical wave guide that may be produced by reproduction method in easy and simple manner, and has a structure that prevents light signal in its inside from leaking out from core, and a method for producing the same optical wave guide. A concave slot for forming a core is formed on the upper surface of a cladding substrate. And on both sides of the concave slot, cavities are formed via flat portions. An ultraviolet ray hardening type transparent resin is applied onto the surface of the cladding substrate, thereafter the transparent resin is pressed by a stamper. At this moment, a core is formed in the concave slot and excessive transparent resin is pressed between the stamper and the flat portions flows into cavities, as a result, it is possible to make the transparent resin thin in a short time. Thereby, it is possible to make the transparent resin left on the flat portions into thickness and width enough to prevent light in the core from leaking out.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: December 26, 2006
    Assignee: Omron Corporation
    Inventors: Masayoshi Higuchi, Toshiyuki Takahashi, Hiromi Totani, Naru Yasuda, Hayami Hosokawa, Fumihiko Sato
  • Publication number: 20060244091
    Abstract: In a semiconductor device of the present invention, a protection diode for protecting a device is formed on an epitaxial layer formed on a substrate. A Schottky barrier metal layer is formed on a surface of the epitaxial layer and a P-type diffusion layer is formed at a lower portion of an end portion of the Schottky barrier metal layer. Then, P-type diffusion layers are formed in a floating state closer to a cathode region side than the P-type diffusion layer, and are capacitively coupled with a metal layer to which an anode potential is applied. This structure reduces a large change in a curvature of a depletion layer, thereby improving a withstand voltage characteristic of the protection diode.
    Type: Application
    Filed: March 30, 2006
    Publication date: November 2, 2006
    Inventors: Shuichi Kikuchi, Shigeaki Okawa, Kiyofumi Nakaya, Toshiyuki Takahashi
  • Publication number: 20060220099
    Abstract: In a conventional semiconductor device, there has been a problem that, in a region where a wiring layer to which a high electric potential is applied traverses a top surface of an isolation region, the withstand voltage is deteriorated. In a semiconductor device of the present invention, an epitaxial layer is deposited on a substrate, and an LDMOSFET is formed in one region divided by an isolation region. In a region where a wiring layer connected to a drain electrode traverses a top surface of the isolation region, a conductive plate having a ground electric potential and another conductive plate in a floating state are formed under the wiring layer. With this structure, electric field is reduced in the vicinity of the isolation region under the wiring layer, whereby a withstand voltage of the LDMOSFET is increased.
    Type: Application
    Filed: March 27, 2006
    Publication date: October 5, 2006
    Inventors: Shuichi Kikuchi, Shigeaki Okawa, Kiyofumi Nakaya, Toshiyuki Takahashi
  • Publication number: 20060220166
    Abstract: In a semiconductor device of the present invention, a protection diode for protecting a device is formed on an epitaxial layer formed on a substrate. A Schottky barrier metal layer is formed on a surface of the epitaxial layer and a P-type diffusion layer is formed at a lower portion of an end portion of the Schottky barrier metal layer. Then, a P-type diffusion layer is formed to be connected to a P-type diffusion layer and is extended to a cathode region. A metal layer to which an anode electrode is applied is formed above the P-type diffusion layer, thereby making it possible to obtain a field plate effect. This structure reduces a large change in a curvature of a depletion layer, thereby improving a withstand voltage characteristic of the protection diode.
    Type: Application
    Filed: March 30, 2006
    Publication date: October 5, 2006
    Inventors: Shuichi Kikuchi, Shigeaki Okawa, Kiyofumi Nakaya, Toshiyuki Takahashi
  • Patent number: 7113683
    Abstract: A method of manufacturing an optical waveguide device includes providing an optical fiber guide for fixing an optical fiber and optical element placing portions for providing element mounting benches outside a waveguide fixing region of a silicon substrate. A metallic thin film is formed outside the waveguide fixing region of the silicon substrate. After an optical waveguide substrate is bonded to a whole of an upper surface of the silicon substrate through a bonding resin which will become an upper cladding layer, the optical waveguide substrate is diced along an edge of the waveguide fixing region, and the optical waveguide substrate outside the waveguide fixing region is removed to expose the optical fiber guide and the optical element placing portions.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: September 26, 2006
    Assignee: OMRON Corporation
    Inventors: Kazuyuki Hayamizu, Yoshiyuki Komura, Yukari Terakawa, Hayami Hosokawa, Toshiyuki Takahashi, Masayoshi Higuchi, Yoshitaka Tatara, Naru Yasuda, Hiroto Nozawa
  • Patent number: 7110700
    Abstract: A belt driving controller includes a driving roller having a radius r1, a plurality of driven rollers that is driven by rotation of the driving roller, the driven rollers having a radius r2, an endless belt that is wound on the driving roller and the driven rollers and an encoder that is attached to one of the driven rollers, and that outputs a signal. The rotation of the driving roller is controlled based on the signal from the encoder, and (?2/?1)×(r1/r2)?1 is satisfied where ?1 is a correction coefficient for a fluctuation in thickness of the endless belt caused by a belt winding angle on the driving roller, and ?2 is a correction coefficient for a fluctuation in the thickness on the driven roller.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: September 19, 2006
    Assignee: Ricoh Company, Limited
    Inventors: Toshiyuki Andoh, Yasumori Nagahara, Tadashi Shinohara, Yuuji Matsuda, Kazuhiko Kobayashi, Nobuto Yokokawa, Masato Yokoyama, Yohhei Miura, Toshiyuki Takahashi, Jun Hosokawa
  • Patent number: 7079797
    Abstract: An image forming apparatus forms a toner image on a moving member by transferring and superposing component color toner images formed on an image bearer. An image forming apparatus includes a driving device that rotates and transports a moving member, a moving value detecting device that detects one of a moving length and a moving speed of the moving member, and a deviation calculating device that calculates a deviation value of one of the moving length and the moving speed by subtracting the detected one of the moving length and the moving speed from a reference value. An adjustment value calculating device calculates an adjustment value in accordance with the calculated deviation value. A driving speed control device controls a driving speed of the driving device in accordance with the calculated adjustment value.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: July 18, 2006
    Assignee: Ricoh Company, Ltd.
    Inventors: Tadashi Shinohara, Toshiyuki Takahashi
  • Publication number: 20060110098
    Abstract: A method of manufacturing an optical waveguide device includes providing an optical fiber guide for fixing an optical fiber and optical element placing portions for providing element mounting benches outside a waveguide fixing region of a silicon substrate. A metallic thin film is formed outside the waveguide fixing region of the silicon substrate. After an optical waveguide substrate is bonded to a whole of an upper surface of the silicon substrate through a bonding resin which will become an upper cladding layer, the optical waveguide substrate is diced along an edge of the waveguide fixing region, and the optical waveguide substrate outside the waveguide fixing region is removed to expose the optical fiber guide and the optical element placing portions.
    Type: Application
    Filed: December 20, 2005
    Publication date: May 25, 2006
    Applicant: OMRON Corporation
    Inventors: Kazuyuki Hayamizu, Yoshiyuki Komura, Yukari Terakawa, Hayami Hosokawa, Toshiyuki Takahashi, Masayoshi Higuchi, Yoshitaka Tatara, Naru Yasuda, Hiroto Nozawa
  • Publication number: 20060104587
    Abstract: A method of manufacturing an optical waveguide device includes providing an optical fiber guide for fixing an optical fiber and optical element placing portions for providing element mounting benches outside a waveguide fixing region of a silicon substrate. A metallic thin film is formed outside the waveguide fixing region of the silicon substrate. After an optical waveguide substrate is bonded to a whole of an upper surface of the silicon substrate through a bonding resin which will become an upper cladding layer, the optical waveguide substrate is diced along an edge of the waveguide fixing region, and the optical waveguide substrate outside the waveguide fixing region is removed to expose the optical fiber guide and the optical element placing portions.
    Type: Application
    Filed: December 20, 2005
    Publication date: May 18, 2006
    Inventors: Kazuyuki Hayamizu, Yoshiyuki Komura, Yukari Terakawa, Hayami Hosokawa, Toshiyuki Takahashi, Masayoshi Higuchi, Yoshitaka Tatara, Naru Yasuda, Hiroto Nozawa
  • Patent number: 7013055
    Abstract: A method of manufacturing an optical waveguide device includes providing an optical fiber guide for fixing an optical fiber and optical element placing portions for providing element mounting benches outside a waveguide fixing region of a silicon substrate. A metallic thin film is formed outside the waveguide fixing region of the silicon substrate. After an optical waveguide substrate is bonded to a whole of an upper surface of the silicon substrate through a bonding resin which will become an upper cladding layer, the optical waveguide substrate is diced along an edge of the waveguide fixing region, and the optical waveguide substrate outside the waveguide fixing region is removed to expose the optical fiber guide and the optical element placing portions.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: March 14, 2006
    Assignee: Omron Corporation
    Inventors: Kazuyuki Hayamizu, Yoshiyuki Komura, Yukari Terakawa, Hayami Hosokawa, Toshiyuki Takahashi, Masayoshi Higuchi, Yoshitaka Tatara, Naru Yasuda, Hiroto Nozawa
  • Publication number: 20060011507
    Abstract: A plate cassette support bar that suppresses the increase in weight of the plate or substrate cassette that increases in size and lessens substrate or plate cassette vibration at the time of loading/unloading the substrates or plates to improve workability.
    Type: Application
    Filed: May 26, 2005
    Publication date: January 19, 2006
    Inventors: Daisuke Uchida, Shinichi Takemura, Kenichi Aoyagi, Yi-Kuang Chen, Toshiyuki Takahashi
  • Patent number: 6949896
    Abstract: A drive control method includes detecting an angular displacement of a rotor driven by a pulse motor, calculating a difference between the detected angular displacement and a preset target value of the angular displacement, and calculating a drive pulse frequency of a drive pulse signal used to drive the pulse motor. The pulse motor is driven by the drive pulse signal having the drive pulse frequency to allow the rotor at a constant angular velocity.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: September 27, 2005
    Assignee: Ricoh Company, Limited
    Inventors: Toshiyuki Andoh, Hiromichi Matsuda, Makoto Komatsu, Tadashi Shinohara, Yuuji Matsuda, Kazuhiko Kobayashi, Nobuto Yokokawa, Masato Yokoyama, Yohhei Miura, Toshiyuki Takahashi, Jun Hosokawa
  • Publication number: 20050180696
    Abstract: An oxide film is formed on an end surface of a waveguide which includes an under cladding, a core and a over cladding. An end surface of a fiber guide holding an optical fiber is coupled the end surface of the waveguide formed the oxide film with a glue. It is preferable that the oxide film is SiOx (1?x?1.5). This oxide film has a composition ratio of an oxygen atom smaller than the stable composition, and thus it is easy for OH radicals to appear on the surface of the oxide film. Such OH radicals bond chemically with the resin of the waveguide and the glue. Thus, an adhesive strength between the waveguide and the fiber guide is improved.
    Type: Application
    Filed: February 16, 2005
    Publication date: August 18, 2005
    Applicant: OMRON Corporation
    Inventors: Toshiyuki Takahashi, Naru Yasuda, Naoki Yoshitake, Hayami Hosokawa
  • Publication number: 20050143870
    Abstract: A remote controller has a touch panel. Multiple items are shown on a display. A user draws a line on the touch panel in the direction where the item is desired to select by moving the finger, for example. The remote controller determines the direction of the drawn line, and transmits the signal indicating the direction to a control unit. The control unit determines the item disposed in the direction indicated by the signal, and executes a process associated with that determined item. The process is executed in this manner, and thus an instruction is made to given devices. The invention can be applied to a car navigation system.
    Type: Application
    Filed: December 2, 2004
    Publication date: June 30, 2005
    Applicant: Sony Corporation
    Inventors: Taichi Yoshio, Satoru Higashiyama, Hirokazu Hashimoto, Toshiyuki Takahashi