Patents by Inventor Kazuhisa Masuko

Kazuhisa Masuko 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: 6771926
    Abstract: In a fuser, a cooling structure (5) is disposed so that a bend angle (&agr;) of a part bent during the time between an endless belt (3) coming in contact with a press cooling face (5a) of the cooling structure (5) and exiting from the press cooling face (5a) is placed in the range of 0° C.<&agr;≦7° C. A fixing belt has a minute hardness of 0.1 to 5 at least on the belt surface coming in contact with toner T and preferably has a gloss degree of 75 or more on the belt surface.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: August 3, 2004
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kiyotaka Ishikawa, Yoshio Kanesawa, Motoi Noya, Sadao Okano, Shinichi Utsumi, Hideaki Seikiguchi, Kazuhisa Masuko, Michiaki Yasuno, Fumio Daishi, Makoto Omata
  • Publication number: 20030206757
    Abstract: In a fuser, a cooling structure (5) is disposed so that a bend angle (&agr;) of a part bent during the time between an endless belt (3) coming in contact with a press cooling face (5a) of the cooling structure (5) and exiting from the press cooling face (5a) is placed in the range of 0° C.<&agr;≦7° C. A fixing belt has a minute hardness of 0.1 to 5 at least on the belt surface coming in contact with toner T and preferably has a gloss degree of 75 or more on the belt surface.
    Type: Application
    Filed: April 2, 2003
    Publication date: November 6, 2003
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kiyotaka Ishikawa, Yoshio Kanesawa, Motoi Noya, Sadao Okano, Shinichi Utsumi, Hideaki Seikiguchi, Kazuhisa Masuko, Michiaki Yasuno, Fumio Daishi, Makoto Omata
  • Patent number: 6618573
    Abstract: In a fuser, a cooling structure (5) is disposed so that a bend angle (&agr;) of apart bent during the time between an endless belt (3) coming in contact with a press cooling face (5a) of the cooling structure (5) and exiting from the press cooling face (5a) is placed in the range of 0° C.<&agr;≦7° C. A fixing belt has a minute hardness of 0.1 to 5 at least on the belt surface coming in contact with toner T and preferably has a gloss degree of 75 or more on the belt surface.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: September 9, 2003
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kiyotaka Ishikawa, Yoshio Kanesawa, Motoi Noya, Sadao Okano, Shinichi Utsumi, Hideaki Seikiguchi, Kazuhisa Masuko, Michiaki Yasuno, Fumio Daishi, Makoto Omata
  • Patent number: 6567640
    Abstract: In a fuser, a cooling structure (5) is disposed so that a bend angle (&agr;) of a part bent during the time between an endless belt (3) coming in contact with a press cooling face (5a) of the cooling structure (5) and exiting from the press cooling face (5a) is placed in the range of 0° C.<&agr;≦7° C. A fixing belt has a minute hardness of 0.1 to 5 at least on the belt surface coming in contact with toner T and preferably has a gloss degree of 75 or more on the belt surface.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: May 20, 2003
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kiyotaka Ishikawa, Yoshio Kanesawa, Motoi Noya, Sadao Okano, Shinichi Utsumi, Hideaki Seikiguchi, Kazuhisa Masuko, Michiaki Yasuno, Fumio Daishi, Makoto Omata
  • Publication number: 20030035666
    Abstract: In a fuser, a cooling structure (5) is disposed so that a bend angle (&agr;) of apart bent during the time between an endless belt (3) coming in contact with a press cooling face (5a) of the cooling structure (5) and exiting from the press cooling face (5a) is placed in the range of 0° C.<&agr;≦7° C. A fixing belt has a minute hardness of 0.1 to 5 at least on the belt surface coming in contact with toner T and preferably has a gloss degree of 75 or more on the belt surface.
    Type: Application
    Filed: September 27, 2002
    Publication date: February 20, 2003
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kiyotaka Ishikawa, Yoshio Kanesawa, Motoi Noya, Sadao Okano, Shinichi Utsumi, Hideaki Seikiguchi, Kazuhisa Masuko, Michiaki Yasuno, Fumio Daishi, Makoto Omata
  • Publication number: 20020057934
    Abstract: In a fuser, a cooling structure (5) is disposed so that a bend angle (&agr;) of apart bent during the time between an endless belt (3) coming in contact with a press cooling face (5a) of the cooling structure (5) and exiting from the press cooling face (5a) is placed in the range of 0° C.<&agr;≦7° C. A fixing belt has a minute hardness of 0.1 to 5 at least on the belt surface coming in contact with toner T and preferably has a gloss degree of 75 or more on the belt surface.
    Type: Application
    Filed: June 13, 2001
    Publication date: May 16, 2002
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Kiyotaka Ishikawa, Yoshio Kanesawa, Motoi Noya, Sadao Okano, Shinichi Utsumi, Hideaki Seikiguchi, Kazuhisa Masuko, Michiaki Yasuno, Fumio Daishi, Makoto Omata
  • Patent number: 6214510
    Abstract: An external addition toner that sufficiently exhibits the effect of an external additive and is excellent in transfer property, and an apparatus for forming an image and a process for forming an image excellent in general purpose property that provide an image of good quality without formation of image defects, such as transfer unevenness and drop off due to transfer failure of the toner. An external addition toner is employed, in which the shape coefficient of the toner particles, as well as a coating ratio x (%) of the external additive to a surface area of the toner particles, a volume average particle diameter D (&mgr;m) of the toner particles and a volume average particle diameter d (&mgr;m) of the external additive having the maximum average particle diameter satisfy the prescribed relationship.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: April 10, 2001
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Noriaki Kojima, Hiroyuki Koide, Kazuhisa Masuko, Takatoshi Ishikawa
  • Patent number: 5729788
    Abstract: A transfer sheet detect sensor for detecting the presence or absence of a transfer sheet is disposed between a point of contact where a developing device for developing an electrostatic latent image formed on an image carrier to form a toner image is contacted with a transfer roller in a transfer portion and a point of tucking provided just upstream of the contact point where the transfer sheet is tucked into the image carrier just upstream of the contact point, the transfer roller is disposed such that it can be contacted with and retreated (separated) from the image carrier, and a cleaning roller is provided such that it can be contacted with the transfer roller while the transfer roller is retreated to its separated position, whereby a given cleaning voltage is applied to the transfer roller when the transfer roller is cleaned by the cleaning roller.
    Type: Grant
    Filed: March 13, 1996
    Date of Patent: March 17, 1998
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Norichika Hirohashi, Tsukasa Inao, Kazuhisa Masuko, Toshihiro Kanematsu
  • Patent number: 4974121
    Abstract: A wiring module for electrically connecting a plurality of electric parts disposed on an equipment frame to a source of electric power, the module comprising an elongated insulating substrate formed to extend along a path adjacent to electric parts disposed on the frame. A pattern of wiring conductors extends along and integral with the insulating substrate for conducting electric current from the source of electric power to each of the electric parts to be connected. The insulating substrate has one or more edge portions provided with protrusions integrally formed with the substrate and extending laterally therefrom. The protrusions each are positioned on the insulating substrate at a location adjacent an electric part to be connected and at least a portion of the wiring conductors are integral with the protrusions to provide a contact on the protrusions for connection to corresponding electric parts.
    Type: Grant
    Filed: May 27, 1988
    Date of Patent: November 27, 1990
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Kazuhisa Masuko, Yosuke Ishiguro