Patents by Inventor Teruyuki Kasuga

Teruyuki Kasuga 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: 9411299
    Abstract: A lubricant supply device includes a solid lubricant, a supply member contacting and rubbing the solid lubricant and thereby scraping a lubricant off the solid lubricant and supplying the lubricant to a lubricant supplying target, and a pressing mechanism pressing the solid lubricant against the supply member. The pressing mechanism includes a biasing device, and a plurality of pressing members receiving a biasing force of the biasing device and thereby pressing places of the solid lubricant at symmetrical positions with respect to a center of a contact part of the solid lubricant contacting the supply member, respectively.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: August 9, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shinichi Kawahara, Hiroomi Harada, Teruyuki Kasuga, Takatsugu Fujishiro
  • Publication number: 20120234188
    Abstract: A lubricant supply device includes a solid lubricant, a supply member contacting and rubbing the solid lubricant and thereby scraping a lubricant off the solid lubricant and supplying the lubricant to a lubricant supplying target, and a pressing mechanism pressing the solid lubricant against the supply member. The pressing mechanism includes a biasing device, and a plurality of pressing members receiving a biasing force of the biasing device and thereby pressing places of the solid lubricant at symmetrical positions with respect to a center of a contact part of the solid lubricant contacting the supply member, respectively.
    Type: Application
    Filed: June 4, 2012
    Publication date: September 20, 2012
    Inventors: Shinichi KAWAHARA, Hiroomi Harada, Teruyuki Kasuga, Takatsugu Fujishiro
  • Patent number: 8235177
    Abstract: A lubricant supply device includes a solid lubricant, a supply member contacting and rubbing the solid lubricant and thereby scraping a lubricant off the solid lubricant and supplying the lubricant to a lubricant supplying target, and a pressing mechanism pressing the solid lubricant against the supply member. The pressing mechanism includes a biasing device, and a plurality of pressing members receiving a biasing force of the biasing device and thereby pressing places of the solid lubricant at symmetrical positions with respect to a center of a contact part of the solid lubricant contacting the supply member, respectively.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: August 7, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Shinichi Kawahara, Hiroomi Harada, Teruyuki Kasuga, Takatsugu Fujishiro
  • Patent number: 7826786
    Abstract: In an image forming apparatus, an area applied with a lubricant, i.e., an area of a lubricant layer having a uniform thickness, is obtained by spreading the lubricant by a lubricant smoothing blade. The area applied with a lubricant covers an area cleaned by a cleaning blade, i.e., a contact portion of the cleaning blade with a photoconductor.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: November 2, 2010
    Assignee: Ricoh Company, Limited
    Inventors: Takeo Suda, Shinichi Kawahara, Takatsugu Fujishiro, Tokuya Ojimi, Takeshi Tabuchi, Masato Yanagida, Haruji Mizuishi, Teruyuki Kasuga, Hiroomi Harada, Shuji Tanaka, Takaaki Tawada, Hiroshi Ono, Ken Amemiya, Toshio Koike, Yuji Arai, Masanori Kawasumi, Takuzi Yoneda, Masami Tomita, Yutaka Takahashi, Yoshio Hattori, Keiichi Yoshida
  • Patent number: 7542712
    Abstract: A process cartridge including an image bearing member; a lubricant applicator, which includes a lubricant application member configured to apply a solid lubricant to the surface of the image bearing member; and a smoothing member configured to smooth the applied solid lubricant, and at least one of a charging device, a developing device and a cleaning device, wherein the amount of the solid lubricant present on a portion of surface of the image bearing member, which is located between the lubricant application member and the smoothing blade, is from 0.11 to 1.2 mg/m2. The smoothing member is preferably a blade having a JIS-A hardness of not less than 79°. The process cartridge is preferably assembled by a method including setting the lubricant smoothing member, the lubricant and the lubricant application member to a housing of the process cartridge; and then setting the image bearing member to the housing.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: June 2, 2009
    Assignee: Ricoh Company Limited
    Inventors: Shuji Tanaka, Shinichi Kawahara, Yoshiyuki Kimura, Hiroshi Hosokawa, Yoshio Hattori, Takeo Suda, Yutaka Takahashi, Takatsugu Fujishiro, Teruyuki Kasuga, Hiroomi Harada, Tokuya Ojimi, Masato Yanagida, Takaaki Tawada, Takeshi Tabuchi, Naohiro Kumagai, Chohtaroh Kataoka, Hidemasa Sato
  • Publication number: 20070183824
    Abstract: In an image forming apparatus, an area applied with a lubricant, i.e., an area of a lubricant layer having a uniform thickness, is obtained by spreading the lubricant by a lubricant smoothing blade. The area applied with a lubricant covers an area cleaned by a cleaning blade, i.e., a contact portion of the cleaning blade with a photoconductor.
    Type: Application
    Filed: December 6, 2005
    Publication date: August 9, 2007
    Inventors: Takeo Suda, Shinichi Kawahara, Takatsugu Fujishiro, Tokuya Ojimi, Takeshi Tabuchi, Masato Yanagida, Haruji Mizuishi, Teruyuki Kasuga, Hiroomi Harada, Shuji Tanaka, Takaaki Tawada, Hiroshi Ono, Ken Amemiya, Toshio Koike, Yuji Arai, Masanori Kawasumi, Takuzi Yoneda, Masami Tomita, Yutaka Takahashi, Yoshio Hattori, Keiichi Yoshida
  • Publication number: 20070068738
    Abstract: A lubricant supply device includes a solid lubricant, a supply member contacting and rubbing the solid lubricant and thereby scraping a lubricant off the solid lubricant and supplying the lubricant to a lubricant supplying target, and a pressing mechanism pressing the solid lubricant against the supply member. The pressing mechanism includes a biasing device, and a plurality of pressing members receiving a biasing force of the biasing device and thereby pressing places of the solid lubricant at symmetrical positions with respect to a center of a contact part of the solid lubricant contacting the supply member, respectively.
    Type: Application
    Filed: August 23, 2006
    Publication date: March 29, 2007
    Inventors: Shinichi Kawahara, Hiroomi Harada, Teruyuki Kasuga, Takatsugu Fujishiro
  • Publication number: 20070059067
    Abstract: A process cartridge including an image bearing member; a lubricant applicator, which includes a lubricant application member configured to apply a solid lubricant to the surface of the image bearing member; and a smoothing member configured to smooth the applied solid lubricant, and at least one of a charging device, a developing device and a cleaning device, wherein the amount of the solid lubricant present on a portion of surface of the image bearing member, which is located between the lubricant application member and the smoothing blade, is from 0.11 to 1.2 mg/m2. The smoothing member is preferably a blade having a JIS-A hardness of not less than 79°. The process cartridge is preferably assembled by a method including setting the lubricant smoothing member, the lubricant and the lubricant application member to a housing of the process cartridge; and then setting the image bearing member to the housing.
    Type: Application
    Filed: September 13, 2006
    Publication date: March 15, 2007
    Inventors: Shuji Tanaka, Shinichi Kawahara, Yoshiyuki Kimura, Hiroshi Hosokawa, Yoshio Hattori, Takeo Suda, Yutaka Takahashi, Takatsugu Fujishiro, Teruyuki Kasuga, Hiroomi Harada, Tokuya Ojimi, Masato Yanagida, Takaaki Tawada, Takeshi Tabuchi, Naohiro Kumagai, Chohtaroh Kataoka, Hidemasa Sato