Patents by Inventor Seiji Nakagawa

Seiji Nakagawa 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: 20080062565
    Abstract: Embodiments of the present invention provide a magnetic slider of which terminals have a sufficiently large process margin for the laser condition in the SBB process. According to one embodiment, a magnetic slider comprises: a read element and a write element; plural wiring lines which are connected to the read element and the write element; a protective film which covers the read element, the write element and the plural-wiring lines; plural slider pads formed on the protective film; and plural studs which respectively connect the slider pads and the wiring lines and are covered by the protective film, wherein each of the slider pads comprises a chromium film, a nickel iron film and a gold film, the nickel iron film is formed between the chromium film and the gold film, and the chromium film is formed between the nickel iron film and one of the studs and is in contact with the protective film.
    Type: Application
    Filed: September 5, 2007
    Publication date: March 13, 2008
    Applicant: Hitachi Global Storage Technologies Netherlands B.V.
    Inventors: Hiroshi Umezaki, Seiji Nakagawa, Yuhsuke Matsumoto, Yoshihisa Takeo, Gen Oikawa, Hiroshi Kamio
  • Publication number: 20080044739
    Abstract: According to one aspect, a method is provided for preparing a photoresist mask set adapted to correct for critical dimension variations resulting from topography effects in a semiconductor device. A plurality of rules is established for correcting critical dimension variations resulting from topography effects associated with predetermined structural combinations. A photoresist mask set is then prepared according to rules corresponding to structural combinations present in a semiconductor device to be manufactured.
    Type: Application
    Filed: August 17, 2006
    Publication date: February 21, 2008
    Applicant: Toshiba America Electronic Components, Inc.
    Inventors: Kenji Konomi, Seiji Nakagawa
  • Patent number: 7235490
    Abstract: A method of manufacturing a semiconductor device comprises preparing a working film to be processed, forming an adhesion improving region on the working film for increasing an adhesion between the working film and a mask material containing carbon, forming the mask material on the working film, forming a resist pattern on the mask material, the mask material having a higher etching resistance for the working film than the resist pattern, transferring the pattern of the resist pattern onto the mask material, and etching the working film by using the mask material as a mask.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: June 26, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhiko Sato, Seiji Nakagawa, Jun Idebuchi, Motoya Kishida, Shuichi Taniguchi, Tsuyoshi Shibata
  • Patent number: 7088224
    Abstract: An audio information transmitting apparatus for transmitting audio information to a human body, comprises an audio signal generating unit in which an audio signal is generated based on inputted audio, an audio information recognizing unit in which the audio signal is recognized as audio information, a vibration signal generating unit in which a vibration signal is generated based on the audio information, a vibration transmitter for transmitting mechanical vibration based on the vibration signal, wherein the vibration signal generating unit modulates a carrier signal having a predetermined frequency based on a predetermined pulse-like pattern corresponding to the audio information so as to generate the vibration signal.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: August 8, 2006
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Seiji Nakagawa, Masahiko Yamaguchi
  • Publication number: 20050242953
    Abstract: The device will make it easy to recognize an individual object located at a specific location using radio frequency ID tags. The device includes an object having an object main body, a tag provided with the object main body, and a display section provided with the object main body to display the information corresponding to the ID information stored on the tag.
    Type: Application
    Filed: July 7, 2005
    Publication date: November 3, 2005
    Inventors: Seiji Nakagawa, Minoru Okamoto
  • Publication number: 20050222845
    Abstract: A device (1) for transmitting speech information to the human body, comprising: a microphone (2) for inputting speech from an external source; a speech signal processor (20) that produces a consonant-clarified signal based on the input speech signal; a carrier signal generator (6) that produces a carrier signal; an amplitude modulator (8) that modulates the amplitude of the carrier signal based on the consonant-clarified signal; and a vibrator (12) that transmits mechanical vibrations based on the amplitude-modulated output signal; the speech signal processor (20) comprising: a consonant extracting unit that extracts the consonant parts from the speech signal; and a repetition processing unit that adds the extracted consonant parts to the speech signal to produce a consonant-clarified signal in which each of the consonant parts of the speech signal is repeated two or more times. This speech information transmitting device realizes good discriminability of speech information.
    Type: Application
    Filed: March 29, 2005
    Publication date: October 6, 2005
    Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Seiji Nakagawa, Kiyoshi Fujimoto, Yoh-ichi Fujisaka, Yosuke Okamoto
  • Publication number: 20050052483
    Abstract: A recording system includes a line head having a plurality of nozzles arranged in a Y direction, a LF motor for feeding a role sheet in an X direction, and a CR motor for shifting a set position of the line head sequentially. When the set position of the line head is shifted by a given distance in the Y direction, the recording system converts image data in such a manner that an image is shifted in an opposite direction by a distance equal to the given distance so that the same image is recorded in different positions of the nozzles.
    Type: Application
    Filed: September 1, 2004
    Publication date: March 10, 2005
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takahiro Esaki, Yutaka Miyazono, Hidetoshi Matsuo, Hiroshi Hattori, Seiji Nakagawa
  • Publication number: 20040263545
    Abstract: A recording direction setting section successively sets recording directions of an image. A recording data generating section generates data for recording the image from the recording direction set by the recording direction setting section. A recording data analyzing section analyzes the operation of a line head performed when recording is carried out in accordance with the data generated by the recording data generating section. A recording direction determining section determines a recording direction so as to minimize the discharging frequency of a nozzle with the largest discharging frequency among a plurality of nozzles of the line head.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 30, 2004
    Applicant: Matsushita Electric Industrial Co., Ltd
    Inventors: Takahiro Esaki, Hidetoshi Matsuo, Seiji Nakagawa, Takamichi Oyama, Hiroshi Hattori, Yutaka Miyazono
  • Publication number: 20040224512
    Abstract: A method of manufacturing a semiconductor device comprises preparing a working film to be processed, forming an adhesion improving region on the working film for increasing an adhesion between the working film and a mask material containing carbon, forming the mask material on the working film, forming a resist pattern on the mask material, the mask material having a higher etching resistance for the working film than the resist pattern, transferring the pattern of the resist pattern onto the mask material, and etching the working film by using the mask material as a mask.
    Type: Application
    Filed: February 27, 2004
    Publication date: November 11, 2004
    Inventors: Yasuhiko Sato, Seiji Nakagawa, Jun Idebuchi, Motoya Kishida, Shuichi Taniguchi, Tsuyoshi Shibata
  • Publication number: 20040183690
    Abstract: An audio information transmitting apparatus for transmitting audio information to a human body, comprises an audio signal generating unit in which an audio signal is generated based on inputted audio, an audio information recognizing unit in which the audio signal is recognized as audio information, a vibration signal generating unit in which a vibration signal is generated based on the audio information, a vibration transmitter for transmitting mechanical vibration based on the vibration signal, wherein the vibration signal generating unit modulates a carrier signal having a predetermined frequency based on a predetermined pulse-like pattern corresponding to the audio information so as to generate the vibration signal.
    Type: Application
    Filed: March 5, 2004
    Publication date: September 23, 2004
    Inventors: Seiji Nakagawa, Masahiko Yamaguchi
  • Patent number: 6777350
    Abstract: A material film forming method is provided which comprises coating a liquid material on a surface of a substrate to form a material film of the liquid material the on the surface of the substrate, while rotating the substrate, and drying the material film, while rotating the substrate and letting air or nitrogen gas blow onto a predetermined area of the material film.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: August 17, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Seiji Nakagawa
  • Patent number: 6681155
    Abstract: In a power plant including a plurality of parallel-operated generating elements supplying electricity and steam, boilers and turbines are controlled in an optimum condition depending on the successive changes of the demand for steam and electricity by: estimating parameters of characteristics and state of the generating elements, which cannot be directly measured, among parameters of the generating elements needed for calculation of the optimum load distribution for each of the generating elements, based on a physical model of each of the generating elements and an input process state quantity; and controlling each of the generating elements by determining an optimum load distribution for the each of the generating elements while using the estimated parameters of the each of the generating elements, to minimize a total cost of the power plant depending on the successive changes of the demand for steam and electricity.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: January 20, 2004
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Kaoru Fujita, Genichi Emoto, Seiji Nakagawa, Toshihiko Takeshita
  • Patent number: 6628380
    Abstract: A jig for inspecting the appearance of small parts with an optical microscope, the jig is equipped with a base, having an upper flat surface which becomes a mounting stage of the optical microscope, and is also provided with a member for moving the upper flat surface at least in a direction approximately parallel to a direction of an optical axis of an objective lens of the optical microscope in order to focus the optical microscope on an inspection portion of the small parts mounted on the upper flat surface. The jig is also equipped with an inspection-object supporting portion, provided with a member for supporting the small parts at the predetermined portion on the base. Furthermore, the jig is equipped with reflecting mirrors which have a mirrorlike surface with an inclined angle of approximately 45 degrees to the upper flat surface of the base.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: September 30, 2003
    Assignee: International Business Machines Corporation
    Inventors: Masashi Fujimori, Kenji Itoh, Toru Koike, Yuhsuke Matsumoto, Seiji Nakagawa, Tatsumi Tsuchiya, Tatsushi Yoshida
  • Publication number: 20030022515
    Abstract: A material film forming method is provided which comprises coating a liquid material on a surface of a substrate to form a material film of the liquid material the on the surface of the substrate, while rotating the substrate, and drying the material film, while rotating the substrate and letting air or nitrogen gas blow onto a predetermined area of the material film.
    Type: Application
    Filed: July 22, 2002
    Publication date: January 30, 2003
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Seiji Nakagawa
  • Patent number: 5969798
    Abstract: Provided are an image inspection apparatus and an image inspection method in a plate making process which can perform inspection over a wide range including not only correction errors in the plate making process but errors caused in formation of an original plate film and a stage between the formation of the original plate film and completion of printing. A first revise recording a color image is regarded as a reference, for reading the image on this first revise. A second revise is regarded as an object, for reading an image on this second revise. The color images on the first revise (reference) and the second revise (object) are compared with each other for detecting mismatching portions of these images. Finally, the mismatching portions are displayed in a specified format.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: October 19, 1999
    Assignee: D.S Technical Research Co., Ltd.
    Inventors: Seiji Nakagawa, Kunio Yagi, Makoto Shimooka, Shinji Kawashima, Tomokazu Taniguchi
  • Patent number: 5885755
    Abstract: A developing treatment apparatus has a spin chuck for supporting a semiconductor wafer on which a photoresist to be developed is formed by suction and rotating it at least two rotating speeds including a low speed and a high speed, a washing liquid supplying nozzle for supplying pure water onto the surface the photoresist, and a developer supplying nozzle for supplying a developer on the same surface. While the semiconductor wafer is supported on the spin chuck by suction and rotated at a low speed, pure water is supplied from the tip of the washing liquid supplying nozzle.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: March 23, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Seiji Nakagawa, Yasushi Ito
  • Patent number: 5754370
    Abstract: The present invention provides a new tab structure for a head suspension assembly in a magnetic storage system. In the prior art method of assembly, a harness temporarily holds a wire assembly. The present invention eliminates the need for the harness, thereby reducing the number of parts and steps as well as improving productivity and quality. A flexure of a suspension assembly must be manufactured very precisely. The present invention provides a new tab structure either integral with or separate from the flexure. Wires bridge over to an extension on the tab structure at a predetermined distance from the end of the load beam. Positioning holes, using the extreme flatness of the tab structure, align the wires with the bonding pads of a head. The suspension assembly is subsequently bonded to the head, and the unwanted tab structure is removed to complete the head suspension assembly.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: May 19, 1998
    Assignee: International Business Machines Corporation
    Inventors: Tatsumi Tsuchiya, Seiji Nakagawa, Tatsushi Yoshida, Yasuhiro Mita