Patents by Inventor Kiyoshi Ohshima

Kiyoshi Ohshima 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: 20220172019
    Abstract: A contactless information medium is provided with a spiral wiring on an IC chip. The IC chip has first and second electrodes, and the spiral wiring has first and second end portions electrically connected to the first and second electrodes, respectively. A first relay wiring is connected to the first electrode via a first connecting hole. The first end portion is connected to the first relay wiring via a third connecting hole formed on an inner peripheral side of the spiral wiring. The first relay wiring includes a rectangular region diagonally including the first connecting hole and the third connecting hole.
    Type: Application
    Filed: April 7, 2020
    Publication date: June 2, 2022
    Inventors: Kiyoshi OHSHIMA, Hideki KOBAYASHI
  • Patent number: 11258160
    Abstract: Provide is an LC resonant antenna including: an inductor layer provided with a coil-shaped inductor; and a capacitor layer provided with a capacitor and laminated on the inductor layer. The capacitor includes a plurality of electrode plates that are aligned with the inductor in a laminating direction of the inductor layer and the capacitor layer and that extend in a surface direction orthogonal to the laminating direction. The inductor is formed to have an axis of a coil center extending in a direction that coincides or substantially coincides with the laminating direction. The plurality of electrode plates each have a passage area that corresponds in the laminating direction to an internal area surrounded by the inductor and allows magnetic flux to pass therethrough.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: February 22, 2022
    Assignee: SK-Electronics Co., Ltd.
    Inventors: Hideki Kobayashi, Kiyoshi Ohshima
  • Patent number: 11258173
    Abstract: Provided is an LC resonant antenna including: an inductor layer provided with a coil-shaped inductor; and a capacitor layer laminated on the inductor layer in a direction of an axis along a coil center of the inductor. The capacitor layer includes a capacitor connected to the inductor. The capacitor includes a pair of electrode plates arranged in parallel at a distance from each other in a laminating direction.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: February 22, 2022
    Assignees: SK-Electronics Co., Ltd., KYOCERA CORPORATION
    Inventors: Hideki Kobayashi, Kiyoshi Ohshima, Koji Yamashita, Takeshi Hasegawa
  • Publication number: 20210218123
    Abstract: Provide is an LC resonant antenna including: an inductor layer provided with a coil-shaped inductor; and a capacitor layer provided with a capacitor and laminated on the inductor layer. The capacitor includes a plurality of electrode plates that are aligned with the inductor in a laminating direction of the inductor layer and the capacitor layer and that extend in a surface direction orthogonal to the laminating direction. The inductor is formed to have an axis of a coil center extending in a direction that coincides or substantially coincides with the laminating direction. The plurality of electrode plates each have a passage area that corresponds in the laminating direction to an internal area surrounded by the inductor and allows magnetic flux to pass therethrough.
    Type: Application
    Filed: November 2, 2018
    Publication date: July 15, 2021
    Inventors: Hideki Kobayashi, Kiyoshi Ohshima
  • Publication number: 20210184353
    Abstract: Provided is an LC resonant antenna including: an inductor layer provided with a coil-shaped inductor; and a capacitor layer laminated on the inductor layer in a direction of an axis along a coil center of the inductor. The capacitor layer includes a capacitor connected to the inductor. The capacitor includes a pair of electrode plates arranged in parallel at a distance from each other in a laminating direction.
    Type: Application
    Filed: November 2, 2018
    Publication date: June 17, 2021
    Inventors: Hideki Kobayashi, Kiyoshi Ohshima, Koji Yamashita, Takeshi Hasegawa
  • Patent number: 8515323
    Abstract: A fixing apparatus includes a fixing member to be heated and a pressure-contacting member for pressure contacting the fixing member. The fixing apparatus directs and conveys a recording member through a nip formed between the fixing member and pressure applying member in such a manner that a toner image carried on a recording member contacts the fixing member in order to be fixed thereto with heat and pressure. The fixing apparatus is configured to direct a tip margin of the recording member toward the pressure applying member across a virtual linear extension line drawn from a downstream end to upstream end of the nip when only the tip margin exits from the nip. A fixing member side separation device may be separately provided from the surface of the fixing apparatus so as to separate the recording member exiting from the nip. A gap formed between the downstream end of the nip and the tip of the fixing member side separation device is set smaller than the width of the tip margin.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: August 20, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba, Atsushi Nakafuji, Hirokazu Ikenoue, Jun Yura, Katsuhiro Echigo, Hideki Kosugi
  • Patent number: 7693471
    Abstract: A fixing apparatus includes a fixing member to be heated and a pressure-contacting member for pressure contacting the fixing member. The fixing apparatus directs and conveys a recording member through a nip formed between the fixing member and pressure applying member in such a manner that a toner image carried on a recording member contacts the fixing member in order to be fixed thereto with heat and pressure. The fixing apparatus is configured to direct a tip margin of the recording member toward the pressure applying member across a virtual linear extension line drawn from a downstream end to upstream end of the nip when only the tip margin exits from the nip. A fixing member side separation device may be separately provided from the surface of the fixing apparatus so as to separate the recording member exiting from the nip. A gap formed between the downstream end of the nip and the tip of the fixing member side separation device is set smaller than the width of the tip margin.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: April 6, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba, Atsushi Nakafuji, Hirokazu Ikenoue, Jun Yura, Echigo Katsuhiro, Hideki Kosugi
  • Publication number: 20100046994
    Abstract: A fixing apparatus includes a fixing member to be heated and a pressure-contacting member for pressure contacting the fixing member. The fixing apparatus directs and conveys a recording member through a nip formed between the fixing member and pressure applying member in such a manner that a toner image carried on a recording member contacts the fixing member in order to be fixed thereto with heat and pressure. The fixing apparatus is configured to direct a tip margin of the recording member toward the pressure applying member across a virtual linear extension line drawn from a downstream end to upstream end of the nip when only the tip margin exits from the nip. A fixing member side separation device may be separately provided from the surface of the fixing apparatus so as to separate the recording member exiting from the nip. A gap formed between the downstream end of the nip and the tip of the fixing member side separation device is set smaller than the width of the tip margin.
    Type: Application
    Filed: November 6, 2009
    Publication date: February 25, 2010
    Inventors: Hisashi KIKUCHI, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba, Atsushi Nakafuji, Hirokazu Ikenoue, Jun Yura, Katsuhiro Echigo, Hideki Kosugi
  • Publication number: 20080138124
    Abstract: A fixing apparatus includes a fixing member to be heated and a pressure-contacting member for pressure contacting the fixing member. The fixing apparatus directs and conveys a recording member through a nip formed between the fixing member and pressure applying member in such a manner that a toner image carried on a recording member contacts the fixing member in order to be fixed thereto with heat and pressure. The fixing apparatus is configured to direct a tip margin of the recording member toward the pressure applying member across a virtual linear extension line drawn from a downstream end to upstream end of the nip when only the tip margin exits from the nip. A fixing member side separation device may be separately provided from the surface of the fixing apparatus so as to separate the recording member exiting from the nip. A gap formed between the downstream end of the nip and the tip of the fixing member side separation device is set smaller than the width of the tip margin.
    Type: Application
    Filed: February 5, 2008
    Publication date: June 12, 2008
    Inventors: Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba, Atsushi Nakafuji, Hirokazu Ikenoue, Jun Yura, Echigo Katsuhiro, Hideki Kosugi
  • Patent number: 7346305
    Abstract: A fixing apparatus includes a fixing member to be heated and a pressure-contacting member for pressure contacting the fixing member. The fixing apparatus directs and conveys a recording member through a nip formed between the fixing member and pressure applying member in such a manner that a toner image carried on a recording member contacts the fixing member in order to be fixed thereto with heat and pressure. The fixing apparatus is configured to direct a tip margin of the recording member toward the pressure applying member across a virtual linear extension line drawn from a downstream end to upstream end of the nip when only the tip margin exits from the nip. A fixing member side separation device may be separately provided from the surface of the fixing apparatus so as to separate the recording member exiting from the nip. A gap formed between the downstream end of the nip and the tip of the fixing member side separation device is set smaller than the width of the tip margin.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: March 18, 2008
    Assignee: Ricoh Company, Ltd
    Inventors: Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba, Atsushi Nakafuji, Hirokazu Ikenoue, Jun Yura, Katsuhiro Echigo, Hideki Kosugi
  • Patent number: 7224928
    Abstract: A fixing apparatus includes a fixing member to be heated and a pressure-contacting member for pressure contacting the fixing member. The fixing apparatus directs and conveys a recording member through a nip formed between the fixing member and pressure applying member in such a manner that a toner image carried on a recording member contacts the fixing member in order to be fixed thereto with heat and pressure. The fixing apparatus is configured to direct a tip margin of the recording member toward the pressure applying member across a virtual linear extension line drawn from a downstream end to upstream end of the nip when only the tip margin exits from the nip. A fixing member side separation device may be separately provided from the surface of the fixing apparatus so as to separate the recording member exiting from the nip. A gap formed between the downstream end of the nip and the tip of the fixing member side separation device is set smaller than the width of the tip margin.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: May 29, 2007
    Assignee: Ricoh Company, Ltd.
    Inventors: Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba, Atsushi Nakafuji, Hirokazu Ikenoue, Jun Yura, Katsuhiro Echigo, Hideki Kosugi
  • Publication number: 20040265017
    Abstract: A fixing apparatus includes a fixing member to be heated and a pressure-contacting member for pressure contacting the fixing member. The fixing apparatus directs and conveys a recording member through a nip formed between the fixing member and pressure applying member in such a manner that a toner image carried on a recording member contacts the fixing member in order to be fixed thereto with heat and pressure. The fixing apparatus is configured to direct a tip margin of the recording member toward the pressure applying member across a virtual linear extension line drawn from a downstream end to upstream end of the nip when only the tip margin exits from the nip. A fixing member side separation device may be separately provided from the surface of the fixing apparatus so as to separate the recording member exiting from the nip. A gap formed between the downstream end of the nip and the tip of the fixing member side separation device is set smaller than the width of the tip margin.
    Type: Application
    Filed: July 29, 2004
    Publication date: December 30, 2004
    Inventors: Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba, Atsushi Nakafuji, Hirokazu Ikenoue, Jun Yura, Katsuhiro Echigo, Hideki Kosugi
  • Patent number: 6795676
    Abstract: A fixing apparatus includes a fixing member to be heated and a pressure-contacting member for pressure contacting the fixing member. The fixing apparatus directs and conveys a recording member through a nip formed between the fixing member and pressure applying member in such a manner that a toner image carried on a recording member contacts the fixing member in order to be fixed thereto with heat and pressure. The fixing apparatus is configured to direct a tip margin of the recording member toward the pressure applying member across a virtual linear extension line drawn from a downstream end to upstream end of the nip when only the tip margin exits from the nip. A fixing member side separation device may be separately provided from the surface of the fixing apparatus so as to separate the recording member exiting from the nip. A gap formed between the downstream end of the nip and the tip of the fixing member side separation device is set smaller than the width of the tip margin.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: September 21, 2004
    Assignee: Ricoh Company, LTD
    Inventors: Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba, Atsushi Nakafuji, Hirokazu Ikenoue, Jun Yura, Echigo Katsuhiro, Hideki Kosugi
  • Publication number: 20030016971
    Abstract: A fixing apparatus includes a fixing member to be heated and a pressure-contacting member for pressure contacting the fixing member. The fixing apparatus directs and conveys a recording member through a nip formed between the fixing member and pressure applying member in such a manner that a toner image carried on a recording member contacts the fixing member in order to be fixed thereto with heat and pressure. The fixing apparatus is configured to direct a tip margin of the recording member toward the pressure applying member across a virtual linear extension line drawn from a downstream end to upstream end of the nip when only the tip margin exits from the nip. A fixing member side separation device may be separately provided from the surface of the fixing apparatus so as to separate the recording member exiting from the nip. A gap formed between the downstream end of the nip and the tip of the fixing member side separation device is set smaller than the width of the tip margin.
    Type: Application
    Filed: June 3, 2002
    Publication date: January 23, 2003
    Inventors: Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba, Atsushi Nakafuji, Hirokazu Ikenoue, Jun Yura, Katsuhiro Echigo, Hideki Kosugi
  • Patent number: 6398345
    Abstract: An air flow is generated in a space adjacent to the toner control member 3, when an image is not being formed, and also a cleaning electric field for moving the toner away from the toner control member 3 is generated in the same space. For instance, a slit 2a is formed in an outer peripheral section of a cylindrical and rotatable counter electrode member 2, and an air flow generating source 10 such as a fan is connected to the counter electrode member 2. A convex cleaning electrode 11 is formed around the slit 2a of the counter electrode member 2, and a voltage for forming a cleaning electric field is applied from the power supply source for cleaning 8 to this cleaning electrode 11.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: June 4, 2002
    Assignees: Ricoh Co., Ltd., Array Printers AB
    Inventors: Katsuo Sakai, Takahiko Tokumasu, Kiyoshi Ohshima, Osamu Endo, Per Klockar, Minoru Suzuki, Kiyotaka Ota
  • Patent number: 6295435
    Abstract: An image forming apparatus, particularly a color image forming apparatus, of the present invention distinguishes a register mark and the background of a conveying member on the basis of the level of a signal representative of the background and the peak value or the bottom value of the signal. The apparatus can therefore accurately detect deviation between images of different colors and correct it.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: September 25, 2001
    Assignee: Ricoh Company, Ltd.
    Inventors: Tadashi Shinohara, Kiyoshi Ohshima, Yasushi Nakazato, Mitsugu Sugiyama
  • Patent number: 5315323
    Abstract: An electrostatic plotter or similar color image forming apparatus for forming an image on a recording medium, e.g. a paper web being transported under tension by a transport roller pair by a head while sensing a register mark formed on the medium. The distance between the register mark and a register mark sensor and the distance between the paper web and the head are maintained constant.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: May 24, 1994
    Assignee: Ricoh Company, Ltd.
    Inventors: Kiyoshi Ohshima, Yoshiyumi Tamiya, Kenichi Shimizu, Tadahiro Suzuki, Kazuaki Iizuka
  • Patent number: 5264273
    Abstract: The structure of a sheet-like electrostatic recording medium which may be configured as a roll and connected to ground via an electrostatic recorder with which it is usable. A connecting member is provided on at least one of axially opposite ends of the roll of the recording medium and electrically connected to an external electrode which is mounted on the recorder.
    Type: Grant
    Filed: September 12, 1991
    Date of Patent: November 23, 1993
    Assignee: Ricoh Company, Ltd.
    Inventors: Tadahiro Suzuki, Seiichi Miyakawa, Kazuaki Iizuka, Kiyoshi Ohshima, Yoshiyumi Tamiya, Kenichi Shimizu, Shigeru Suzuki
  • Patent number: 5245396
    Abstract: A color image forming apparatus of the type recording a register mark on a recording medium for registering the leading edges of images of respective colors to form a color image. The apparatus forms the register mark on the medium outside of the effective area of a main image and such that the mark extends perpendicular to an intended direction of medium feed. The register mark is developed in cyan and in the highest density to insure accurate register of colors. The register mark is cut off together with the leading edge of the medium.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: September 14, 1993
    Assignee: Ricoh Company, Ltd.
    Inventors: Kiyoshi Ohshima, Yoshiyumi Tamiya, Kenichi Shimizu, Tadahiro Suzuki, Kazuaki Iizuka
  • Patent number: 5202534
    Abstract: A developing apparatus using a liquid developer and a developing head located to face a path along which a recording medium carrying, for example, an electrostatic latent image thereon is transported. A groove is formed in the surface of the head that faces the transport path. After development, the liquid remaining at the corner defined by the upper inner portion of the groove and the medium is rapidly collected to allow a minimum of smear to occur on the part of the medium which will be transported later. When the transport of the medium should be interrupted during development due to, for example, a jam, the liquid in the groove is collected to prevent a great amount of liquid which would smear a drive roller and other transport members from being transferred from the head to the medium.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: April 13, 1993
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiumi Tamiya, Seiichi Miyakawa, Kazuaki Iizuka, Kenichi Shimizu, Shigeru Suzuki, Kiyoshi Ohshima, Tadahiro Suzuki