Patents by Inventor Yoshio Fuwa

Yoshio Fuwa 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: 9624975
    Abstract: The sliding member according to the present invention includes: a base material; and a sliding film that covers a surface of the base material and constitutes a sliding surface, and is used under a wet condition where lubricant oil exists. The sliding film according to the present invention is a laminated film that includes: an underlying layer formed on the surface of the base material; and an outermost layer formed at least on a part of the underlying layer. This outermost layer is characterized by including specific boron-containing amorphous carbon (specific B-DLC) that contains 4-50% B and 5-50% H when the outermost layer as a whole is 100 at %. This specific B-DLC itself wears away during the sliding to smooth the sliding surface, and an excellent low friction property is exhibited. The underlying layer of the specific B-DLC contributes to improvement in the wear resistance property of the sliding film.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: April 18, 2017
    Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaru Okuyama, Mamoru Tohyama, Hiroyuki Mori, Munehisa Matsui, Naoya Ikeda, Yoshio Fuwa, Takatoshi Shinyoshi
  • Publication number: 20160251589
    Abstract: A composition for a lubricating film includes molybdenum disulfide particles which are dispersed, and a binding resin, and is a composition for coating a surface of a base material made of metal with a lubricating film in which the molybdenum disulfide particles are bound together by the binding resin. The composition for a lubricating film contains 50 mass % to 70 mass % of the molybdenum disulfide particles with respect to a total amount of the molybdenum disulfide particles and the binding resin. An average particle size of the molybdenum disulfide particles is in a range of 0.1 ?m to 3.0 ?m.
    Type: Application
    Filed: February 25, 2016
    Publication date: September 1, 2016
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, ART METAL MFG, CO., LTD., AKROS Co., Ltd.
    Inventors: Misato KISHI, Yoshio FUWA, Koji SAITO, Keiji HAYASHI, Ichiro YAMAGUCHI, Naoto KOYAMAISHI, Shinya TERADA, Nobuyuki FUJIWARA, Yuichiro KANAZAWA, Shin MAKINO, Keisuke MIYAMOTO, Masako JIMBO
  • Publication number: 20150267746
    Abstract: The sliding member according to the present invention includes: a base material; and a sliding film that covers a surface of the base material and constitutes a sliding surface, and is used under a wet condition where lubricant oil exists. The sliding film according to the present invention is a laminated film that includes: an underlying layer formed on the surface of the base material; and an outermost layer formed at least on a part of the underlying layer. This outermost layer is characterized by including specific boron-containing amorphous carbon (specific B-DLC) that contains 4-50% B and 5-50% H when the outermost layer as a whole is 100 at %. This specific B-DLC itself wears away during the sliding to smooth the sliding surface, and an excellent low friction property is exhibited. The underlying layer of the specific B-DLC contributes to improvement in the wear resistance property of the sliding film.
    Type: Application
    Filed: March 11, 2015
    Publication date: September 24, 2015
    Inventors: Masaru OKUYAMA, Mamoru TOHYAMA, Hiroyuki MORI, Munehisa MATSUI, Naoya IKEDA, Yoshio FUWA, Takatoshi SHINYOSHI
  • Patent number: 9121548
    Abstract: A sliding member includes: a substrate which has a sliding surface sliding under the presence of lubricating oil; and a film which is fixed to at least a part of the sliding surface. The film contains carbon (C), titanium (Ti), and boron (B), is obtained by repeatedly and alternately layering a first layer containing amorphous carbon as a principal component and a second layer containing C and Ti as principal components, and has hardness of 18 GPa or more.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: September 1, 2015
    Assignee: Kobe Steel, Ltd.
    Inventors: Hiroyuki Mori, Munehisa Matsui, Keiji Hayashi, Yoshio Fuwa, Takatoshi Shinyoshi, Satoshi Jinno, Kenji Shimoda, Satoshi Hirota, Koichiro Akari, Hirotaka Ito
  • Patent number: 9062274
    Abstract: The low friction sliding member includes a substrate and an amorphous hard carbon film formed on the surface of the substrate and makes sliding contact with a mating member under a wet oiling condition. The lubricant oil includes at least one of sulfur (S) and phosphorus (P) and at least one of zinc (Zn), calcium (Ca), magnesium (Mg), sodium (Na), barium (Ba) and copper (Cu). The amorphous hard carbon film comprises carbon (C) as a major component, and hydrogen (H) in the range from 5 to 25 atomic % and a predetermined amount of boron (B), aluminum (Al), manganese (Mn) or molybdenum (Mo) assuming that the total atomic % of the amorphous carbon film is 100.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: June 23, 2015
    Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Mori, Munehisa Matsui, Toshihide Ohmori, Takatoshi Shinyoshi, Yoshio Fuwa, Keiji Hayashi
  • Publication number: 20140038868
    Abstract: A sliding member includes: a substrate which has a sliding surface sliding under the presence of lubricating oil; and a film which is fixed to at least a part of the sliding surface. The film contains carbon (C), titanium (Ti), and boron (B), is obtained by repeatedly and alternately layering a first layer containing amorphous carbon as a principal component and a second layer containing C and Ti as principal components, and has hardness of 18 GPa or more.
    Type: Application
    Filed: April 12, 2012
    Publication date: February 6, 2014
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Hiroyuki Mori, Munehisa Matsui, Keiji Hayashi, Yoshio Fuwa, Takatoshi Shinyoshi, Satoshi Jinno, Kenji Shimoda, Satoshi Hirota, Koichiro Akari, Hirotaka Ito
  • Patent number: 8145173
    Abstract: A receiver includes a first receiving section, a second receiving section, and a controller. A controller is operable to switch between a diversity receiving mode in which both of the first receiving section and the second receiving section are activated and a single receiving mode in which the first receiving section is activated while the second receiving section is deactivated. The controller allows the first mixer to heterodyne the signal output from the first RF amplifier with using the second oscillation signal and output the heterodyned signal in the first single receiving mode.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: March 27, 2012
    Assignee: Panasonic Corporation
    Inventors: Daisuke Nishimura, Hiroaki Ozeki, Yoshio Fuwa, Kazuyori Doumoto
  • Publication number: 20110021390
    Abstract: The low friction sliding member includes a substrate and an amorphous hard carbon film formed on the surface of the substrate and makes sliding contact with a mating member under a wet oiling condition. The lubricant oil includes at least one of sulfur (S) and phosphorus (P) and at least one of zinc (Zn), calcium (Ca), magnesium (Mg), sodium (Na), barium (Ba) and copper (Cu). The amorphous hard carbon film comprises carbon (C) as a major component, and hydrogen (H) in the range from 5 to 25 atomic % and a predetermined amount of boron (B), aluminum (Al), manganese (Mn) or molybdenum (Mo) assuming that the total atomic % of the amorphous carbon film is 100.
    Type: Application
    Filed: July 2, 2010
    Publication date: January 27, 2011
    Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Mori, Munehisa Matsui, Toshihide Ohmori, Takatoshi Shinyoshi, Yoshio Fuwa, Keiji Hayashi
  • Patent number: 7712964
    Abstract: A sliding bearing having excellent initial conformability and seizure resistance as well as high durability and heat resistance is provided. A sliding bearing comprising a coating layer containing a resin and a solid lubricant formed on a bearing alloy layer, characterized in that the resin of said coating layer is a resin having a glass transition temperature of from 150° C. to 250° C. which has a great elongation at high temperatures.
    Type: Grant
    Filed: February 13, 2004
    Date of Patent: May 11, 2010
    Assignee: Taiho Kogyo Co., Ltd.
    Inventors: Kimio Kawagoe, Katsuyuki Hashizume, Yoshio Fuwa
  • Publication number: 20090203348
    Abstract: A receiver includes a first receiving section, a second receiving section, and a controller. A controller is operable to switch between a diversity receiving mode in which both of the first receiving section and the second receiving section are activated and a single receiving mode in which the first receiving section is activated while the second receiving section is deactivated. The controller allows the first mixer to heterodyne the signal output from the first RF amplifier with using the second oscillation signal and output the heterodyned signal in the first single receiving mode.
    Type: Application
    Filed: November 21, 2007
    Publication date: August 13, 2009
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Daisuke Nishimura, Hiroaki Ozeki, Yoshio Fuwa, Kazuyori Doumoto
  • Patent number: 7497783
    Abstract: A propeller shaft having high wear resistance is provided. The propeller shaft has a spline shaft and a spline sleeve meshing with each other, and a DLC coating is applied to any one of the spline shaft and the spline sleeve. The DLC coating has surface roughness Ra of 0.5 ?m or smaller.
    Type: Grant
    Filed: December 27, 2006
    Date of Patent: March 3, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hitoshi Azuma, Shinichi Takeuchi, Hiroaki Tashiro, Takeo Yamamoto, Yoshinori Ozaki, Yoshio Fuwa, Masaaki Ogawa
  • Publication number: 20070149299
    Abstract: A propeller shaft having high wear resistance is provided. The propeller shaft has a spline shaft and a spline sleeve meshing with each other, and a DLC coating is applied to any one of the spline shaft and the spline sleeve. The DLC coating has surface roughness Ra of 0.5 ?m or smaller.
    Type: Application
    Filed: December 27, 2006
    Publication date: June 28, 2007
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hitoshi Azuma, Shinichi Takeuchi, Hiroaki Tashiro, Takeo Yamamoto, Yoshinori Ozaki, Yoshio Fuwa, Masaaki Ogawa
  • Publication number: 20070141347
    Abstract: A hard carbon film formed on a substrate via an intermediate layer is made up of a diamond-like carbon layer and a graphite particle deposition layer formed on the diamond-like carbon layer. The ID/IG of the graphite particle deposition layer that is a ratio of the integrated intensity ID of a peak representing the D band and the integrated intensity IG of a peak representing the G band that are obtained through the peak separation of the Raman spectrum based on the Raman spectroscopic analysis is 1 or less.
    Type: Application
    Filed: December 14, 2006
    Publication date: June 21, 2007
    Inventors: Ikuo Nakagawa, Yoshio Fuwa, Masaaki Ogawa, Yoshinori Ozaki
  • Publication number: 20070078067
    Abstract: According to the present invention, a sliding structure whereby wear resistance of a pair of sliding members that are able to slide relative to each other is improved and the friction coefficient can be reduced is provided. The sliding structure in which a lubricating oil is fed between sliding faces of a pair of sliding members that are able to slide relative to each other such that at least one of the members is allowed to slide is provided. The sliding structure is characterized in that: an amorphous carbon film is formed on the sliding face of at least one sliding member so as to result in a D to G band integrated intensity ratio in the Raman spectrum of between 1.5 and 2.0; and the lubricating oil existing between the sliding faces contains a compound comprising at least molybdenum and sulfur so as to result in a molybdenum content of not less than 400 ppm relative to the lubricating oil.
    Type: Application
    Filed: October 4, 2006
    Publication date: April 5, 2007
    Inventors: Ikuo Nakagawa, Masaaki Ogawa, Yoshio Fuwa, Yoshinori Ozaki
  • Publication number: 20050157964
    Abstract: A sliding bearing having excellent initial conformability and seizure resistance as well as high durability and heat resistance is provided. A sliding bearing comprising a coating layer containing a resin and a solid lubricant formed on a bearing alloy layer, characterized in that the resin of said coating layer is a resin having a glass transition temperature of from 150° C. to 250° C. which has a great elongation at high temperatures.
    Type: Application
    Filed: February 13, 2004
    Publication date: July 21, 2005
    Inventors: Kimio Kawagoe, Katsuyuki Hashizume, Yoshio Fuwa
  • Patent number: 6802649
    Abstract: In sliding bearing, wherein an overlay, which consists of at least one solid lubricant and a binder resin, covers an aluminum-alloy bearing layer bonded on backing metal, the overlay consists of an upper layer, which contains the solid lubricant essentially consisting of MoS2, and a lower layer, which contains one or both of solid lubricant and hard additive. The solid lubricant of the lower layer is MoS2 and its content is relatively lower than in the upper layer.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: October 12, 2004
    Assignee: Taiho Kogyo Co., Ltd.
    Inventors: Kimio Kawagoe, Hiroshi Ito, Toru Desaki, Yasuaki Goto, Yoshio Fuwa, Shoichi Seko
  • Patent number: 6723184
    Abstract: An aluminum alloy which is able to use not only expensive TiC particles, but also inexpensive dispersed reinforcing particles and which is further raised in high temperature strength without requiring an increase in dispersed reinforcing particles, comprised of Sn: 2 to 20 wt %, Cu: 0.1 to 3 wt %, Ca: 0.02 to 1.5 wt %, at least one element selected from the group comprised of Mg, Cr, Zr, Mn, V, Ni, and Fe: not more than 2 wt % in total, at least one type of reinforcing particle selected from the group comprised of TiC particles, ZrC particles, and Al2O3 particles: 0.1 to 5 vol % in total, and the balance of Al and unavoidable impurities; a slide bearing comprised of that aluminum alloy; and a slide bearing comprised of a bearing body made of that aluminum alloy provided on its surface with a resin coating layer comprised of a heat-curing resin and a solid lubricant.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: April 20, 2004
    Assignee: Taiho Kogyo Co., Ltd.
    Inventors: Kazuaki Sato, Yoshio Fuwa, Takashi Tomikawa, Shinichiro Sakamoto
  • Patent number: 6703777
    Abstract: In an adjusting method for a cathode position of an electron gun, an apex point of a dome-shaped cathode is detected and then a positional adjustment is executed by moving a first grid in a X-Y direction so that a center of a grid aperture is coincided with the position of the apex point, at first. Next, a sleeve ring and a collar portion of a sleeve holder are welded together by a laser beam. The a dgk-vale adjustment is done so as for a gap between first grid and apex point of the cathode to be a predetermined value and welded by irradiating the laser beam to a superposed position of the cathode structure and the sleeve. According to the present invention, these positioning adjustment and the dgk-value adjustment are able to be executed independently.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: March 9, 2004
    Assignee: Sony Corporation
    Inventors: Hirofumi Nakamura, Hideki Miyazaki, Yoshio Fuwa, Hiroshi Ushida
  • Patent number: 6671943
    Abstract: In a method of manufacturing a sliding member, a granular spraying material is sprayed on at least a part of a surface of a body portion made of a structural material in at least partially fusing condition and in the direction which is parallel to or diagonal to a sliding surface. Then, a sprayed layer is formed by depositing the spraying material in the direction which is perpendicular to the sliding surface. The sliding surface is a section of the deposited spraying material which is obtained by grinding or cutting the sprayed layer in depositional direction.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: January 6, 2004
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuhiko Mori, Kouta Kodama, Taisuke Miyamoto, Yoshio Fuwa, Kouji Saitoh
  • Patent number: 6655842
    Abstract: An object of the present invention is to provide a sliding bearing having an excellent initial conformability and seizure resistance as well as desired durability and heat resistance required particularly for high speed engine. The present invention provides a sliding bearing having a resin coating layer comprising a thermosetting resin being soft and having a good elongation at high temperature and a solid lubricant formed on a bearing alloy layer.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: December 2, 2003
    Assignee: Taiho Kogyo Co., Ltd.
    Inventors: Hiroshi Kanayama, Toru Desaki, Kimio Kawagoe, Yasuaki Goto, Yoshio Fuwa, Hirofumi Michioka, Kenyuu Akiyama