Patents by Inventor Toru Onuki

Toru Onuki 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).

  • Transmission determining method in a reception side apparatus
    Patent number: 7512174
    Abstract: The invention determines a transmission power value or a data rate in transmission power control in a reception side apparatus. A communication apparatus includes a modulation class controlling portion for selecting one data rate, and transmits a communication signal having the selected one data rate to a communication apparatus.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: March 31, 2009
    Assignee: Kyocera Corporation
    Inventors: Yuuya Tounai, Masamitsu Nishikido, Nobuyuki Tanaka, Hidehiro Eguchi, Syouichi Morokuma, Toru Onuki
  • Piston ring having improved scuffing, cracking and fatigue resistances, and its production method, as well as combination of piston ring and cylinder block
    Publication number: 20070187002
    Abstract: A piston ring having improved scuffing resistance, cracking resistance and fatigue resistance, consists of a high-chromium martensitic stainless steel and a sliding nitriding layer formed on the surface of said steel. The stainless steel consists of C: 0.3 to 1.0%; Cr: 14.0 to 21.0%, N: 0.05 to 0.50%, at least one of Mo, V, W and Nb: 0.03 to 3.0% in total, Si: 0.1 to 1.0%, Mn 0.1 to 1.0%, P: 0.05% or less, S: 0.05% or less, the balance being Fe and unavoidable impurities. The sliding nitriding layer comprises on its surface hard particles mainly consisting of nitrides in a range of from 0.2 to 2.0 ?m of average particle size, 7 ?m or less of the longest diameter, and from 5 to 30% in area ratio.
    Type: Application
    Filed: January 24, 2007
    Publication date: August 16, 2007
    Inventors: Junya Takahashi, Toru Onuki, Shigeo Inoue, Mitsutaka Sasakura
  • Communication system, communication apparatus, and transmission controlling method
    Publication number: 20060067389
    Abstract: The invention aims at determining a transmission power value or a data rate in transmission power control in a reception side apparatus. A communication apparatus (2) includes a modulation class controlling portion (14) for selecting one data rate, and transmits a communication signal having the selected one data rate to a communication apparatus (3).
    Type: Application
    Filed: September 28, 2005
    Publication date: March 30, 2006
    Inventors: Yuuya Tounai, Masamitsu Nishikido, Nobuyuki Tanaka, Hidehiro Eguchi, Syouichi Morokuma, Toru Onuki
  • Piston ring excellent in resistance to scuffing, cracking and fatigue and method for producing the same, and combination of piston ring and cylinder block
    Publication number: 20040040631
    Abstract: A piston ring having improved scuffing resistance, cracking resistance and fatigue resistance, consists of a high-chromium martensitic stainless steel and a sliding nitriding layer formed on the surface of said steel. The stainless steel consists of C: 0.3 to 1.0%; Cr: 14.0 to 21.0%, N: 0.05 to 0.50%, at least one of Mo, V, W and Nb: 0.03 to 3.0% in total, Si: 0.1 to 1.0%, Mn 0.1 to 1.0%, P: 0.05% or less, S: 0.05% or less, the balance being Fe and unavoidable impurities. The sliding nitriding layer comprises on its surface hard particles mainly consisting of nitrides in a range of from 0.2 to 2.0 &mgr;m of average particle size, 7 &mgr;m or less of the longest diameter, and from 5 to 30% in area ratio.
    Type: Application
    Filed: June 17, 2003
    Publication date: March 4, 2004
    Inventors: Junya Takahashi, Toru Onuki, Shigeo Inoue, Mitsutaka Sasakura
  • Nitrided steel sliding member having improved wear resistance and fatigue strength
    Patent number: 6569266
    Abstract: The steel for nitriding consists of 0.5 to 1.0% of C, 1.0% or less of Si, 0.3 to 1.0% of Mn, 5.0 to 12.0% of Cr, 0.5 to 2.0% of Mo, 0.1 to 0.3% of V, the balance being Fe and exhibits improved wear-resistance and fatigue-strength.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: May 27, 2003
    Assignee: Kabushiki Kaisha Riken
    Inventors: Shigeo Inoue, Toru Onuki
  • Steel for nitriding and sliding member having improved wear resistance and fatigue strength
    Publication number: 20010054456
    Abstract: The steel for nitriding consists of 0.5 to 1.0% of C, 1.0% or less of Si, 0.3 to 1.0% of Mn, 5.0 to 12.0% of Cr, 0.5 to 2.0% of Mo, 0.1 to 0.3% of V, the balance being Fe and exhibits improved wear-resistance and fatigue-strength.
    Type: Application
    Filed: April 24, 2001
    Publication date: December 27, 2001
    Inventors: Shigeo Inoue, Toru Onuki
  • Piston ring having a wear resistant surface layer
    Patent number: 4876158
    Abstract: There is disclosed a wear resistant surface layer composed of 40 to 70 wt. % cobalt or cobalt base alloy as binder and the balance is substantially chromium oxide particles.
    Type: Grant
    Filed: March 18, 1988
    Date of Patent: October 24, 1989
    Assignees: Kabushikikaisha Riken, Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Toru Onuki, Junichi Sagawa, Tamotsu Watanabe, Toshio Yoshimitsu