Patents by Inventor Iwao Hamaguchi

Iwao Hamaguchi 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).

  • Patent number: 7698484
    Abstract: An information processor that is connected to at least one other information processor via a network, includes a detecting unit that detects an optional device to be used for information processing, as a target optional device, installed on the other information processor, an issuing unit that issues an access request to use the target optional device to the other information processor, a receiving unit that receives an access permission for access to the target optional device from the other information processor, and a processing unit that performs the information processing with the target optional device.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: April 13, 2010
    Assignee: Ricoh Co., Ltd.
    Inventors: Junichi Ikeda, Koji Oshikiri, Noriyuki Terao, Atsuhiro Oizumi, Yutaka Maita, Satoru Numakura, Hiroo Kitagawa, Tomonori Tanaka, Hiroyuki Kimbara, Hidetake Tanaka, Iwao Hamaguchi, Keiichi Iwasaki, Toshihiro Tsukagoshi, Naoki Tsumura
  • Patent number: 7664904
    Abstract: A high-speed serial switch fabric is configured to perform a mapping of a traffic class that is capable of differentiating traffics onto a virtual channel. The high-speed serial switch fabric connects a plurality of devices. A traffic-class setting unit sets, when a conflict occurs between devices connected to the high-speed serial switch fabric, the traffic class for each of traffics in the devices having the conflict. A channel setting unit assigns each of set traffic classes to different virtual channels, and gives a priority of data communication to each of the set traffic classes.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: February 16, 2010
    Assignee: Ricoh Company, Limited
    Inventors: Koji Oshikiri, Noriyuki Terao, Junichi Ikeda, Atsuhiro Oizumi, Satoru Numakura, Yutaka Maita, Tomonori Tanaka, Hiroyuki Kimbara, Keiichi Iwasaki, Toshihiro Tsukagoshi, Iwao Hamaguchi, Hidetake Tanaka, Naoki Tsumura, Hiroo Kitagawa
  • Publication number: 20070211746
    Abstract: A high-speed serial switch fabric is configured to perform a mapping of a traffic class that is capable of differentiating traffics onto a virtual channel. The high-speed serial switch fabric connects a plurality of devices. A traffic-class setting unit sets, when a conflict occurs between devices connected to the high-speed serial switch fabric, the traffic class for each of traffics in the devices having the conflict. A channel setting unit assigns each of set traffic classes to different virtual channels, and gives a priority of data communication to each of the set traffic classes.
    Type: Application
    Filed: March 9, 2007
    Publication date: September 13, 2007
    Inventors: Koji OSHIKIRI, Noriyuki Terao, Junichi Ikeda, Atsuhiro Oizumi, Satoru Numakura, Yutaka Maita, Tomonori Tanaka, Hiroyuki Kimbara, Keiichi Iwasaki, Toshihiro Tsukagoshi, Iwao Hamaguchi, Hidetake Tanaka, Naoki Tsumura, Hiroo Kitagawa
  • Publication number: 20070067551
    Abstract: An information processor that is connected to at least one other information processor via a network, includes a detecting unit that detects an optional device to be used for information processing, as a target optional device, installed on the other information processor, an issuing unit that issues an access request to use the target optional device to the other information processor, a receiving unit that receives an access permission for access to the target optional device from the other information processor, and a processing unit that performs the information processing with the target optional device.
    Type: Application
    Filed: September 19, 2006
    Publication date: March 22, 2007
    Inventors: Junichi Ikeda, Koji Oshikiri, Noriyuki Terao, Atsuhiro Oizumi, Yutaka Maita, Satoru Numakura, Hiroo Kitagawa, Tomonori Tanaka, Hiroyuki Kimbara, Hidetake Tanaka, Iwao Hamaguchi, Keiichi Iwasaki, Toshihiro Tsukagoshi, Naoki Tsumura
  • Patent number: 5351209
    Abstract: An apparatus for converting optical information into an electrical information signal includes a plurality of one-dimensional conversion arrays arranged in parallel form. Each one-dimensional conversion array has first and second photoelectric conversion structures integrally formed. The first photoelectric conversion structure has photoelectric conversion elements each having a light receiving surface onto which an information light is projected. The second photoelectric conversion structure has photoelectric conversion elements each having a sweep light receiving surface onto which a sweep light is projected. The sweep light has a cross section which simultaneously scans the sweep light receiving surface of one of the photoelectric conversion elements included in each of the one-dimensional conversion arrays.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: September 27, 1994
    Assignees: Ricoh Company, Inc., Agency of Industrial Science and Technology
    Inventors: Yutaka Hayashi, Iwao Hamaguchi, Shunsuke Fujita
  • Patent number: 5235542
    Abstract: An apparatus for converting optical information into an electrical information signal includes a plurality of one-dimensional conversion arrays arranged in parallel form. Each one-dimensional conversion array has first and second photoelectric conversion structures integrally formed. The first photoelectric conversion structure has photoelectric conversion elements each having a light receiving surface onto which an information light is projected. The second photoelectric conversion structure has photoelectric conversion elements each having a sweep light receiving surface onto which a sweep light is projected. The sweep light has a cross section which simultaneously scans the sweep light receiving surface of one of the photoelectric conversion elements included in each of the one-dimensional conversion arrays.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: August 10, 1993
    Assignees: Ricoh Company, Ltd., Agency of Industrial Science & Technology
    Inventors: Yutaka Hayashi, Iwao Hamaguchi, Shunsuke Fujita
  • Patent number: 5194959
    Abstract: An image forming apparatus for forming an image corresponding to a subject is provided, which image forming apparatus includes a taking lens for making an optical image corresponding to the subject, and a dividing portion for dividing the optical image transmitted via said taking lens into several adjacent optical image parts. The image forming apparatus further includes several solid-state image sensors corresponding to the number of the optical image parts, each of said solid-state image sensors receiving a corresponding optical image part from among the several optical image parts from the dividing portion and outputting an image signal corresponding to the optical image part, the optical image parts received by said solid-state image sensors being adjacent to each other.
    Type: Grant
    Filed: December 18, 1990
    Date of Patent: March 16, 1993
    Assignee: Ricoh Company, Ltd. and Nippon Telegraph and Telephone Corporation
    Inventors: Yutaka Kaneko, Masanori Saitoh, Iwao Hamaguchi, Kazutake Uehira, Kazumi Komiya
  • Patent number: 5079415
    Abstract: An apparatus for converting optical information into an electrical information signal includes a plurality of one-dimensional conversion arrays arranged in parallel form. Each one-dimensional conversion array has first and second photoelectric conversion structures integrally formed. The first photoelectric conversion structure has photoelectric conversion elements each having a light receiving surface onto which an information light is projected. The second photoelectric conversion structure has photoelectric conversion elements each having a sweep light receiving surface onto which a sweep light is projected. The sweep light has a cross section which simultaneously scans the sweep light receiving surface of one of the photoelectric conversion elements included in each of the one-dimensional conversion arrays.
    Type: Grant
    Filed: April 2, 1990
    Date of Patent: January 7, 1992
    Assignees: Ricoh Company, Ltd., Agency of Industrial Science & Technology
    Inventors: Yutaka Hayashi, Hiroyoshi Funato, Iwao Hamaguchi, Shunsuke Fujita
  • Patent number: 4602237
    Abstract: A ballast resistor device for use in a gas laser system for stabilizing the operation of the gas laser includes a housing, a ballast resistor element and a filler material filled in the space between the housing and the resistor element is provided. In the preferred embodiment, the filler material is substantially high in dielectric breakdown strength as well as in thermal conductivity, so that the ballast resistor device of the present invention has a rigid structure providing a strong mechanical and electrical durability, not to mention an excellent heat dissipating characteristic thereby allowing to prevent the resistor element from being overheated.
    Type: Grant
    Filed: September 6, 1984
    Date of Patent: July 22, 1986
    Assignee: Ricoh Company, Ltd.
    Inventor: Iwao Hamaguchi
  • Patent number: 4585297
    Abstract: A light deflector for use in a laser printer, for example, is composed of a motor having a drive shaft and a light reflecting member such as a rotating multiple-surface mirror or a hologram. The motor is subjected to magnetic field ripples the number of which is equal to a multiple by an integer of the number of light reflecting surfaces of the light reflecting member.
    Type: Grant
    Filed: July 7, 1983
    Date of Patent: April 29, 1986
    Assignee: Ricoh Company, Ltd.
    Inventors: Iwao Hamaguchi, Isamu Shibata
  • Patent number: 4567061
    Abstract: An insulation film of improved properties and an interface of similarly improved properties between the insulation film and a semiconductor are produced by heating silicon, a silicon compound or a silicon dioxide film in an atmosphere formed by incorporating a carbon fluorine gas into an oxidative gas.
    Type: Grant
    Filed: July 30, 1984
    Date of Patent: January 28, 1986
    Assignees: Agency of Industrial Science & Technology, Ministry of International Trade & Industry
    Inventors: Yutaka Hayashi, Iwao Hamaguchi, Kiyohiko Kobayashi