Patents by Inventor Yasuko Yamauchi

Yasuko Yamauchi 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).

  • Stabilization of amrubicin hydrochloride
    Patent number: 8030283
    Abstract: A stabilized amrubicin hydrochloride composition which comprises 3 to 8 wt. % water and 92 to 97 wt. % amrubicin hydrochloride; and a method of storing amrubicin hydrochloride.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: October 4, 2011
    Assignee: Dainippon Sumitomo Pharma Co., Ltd.
    Inventors: Kazuhiko Takahashi, Koji Fujimoto, Yasuko Yamauchi
  • Toner for developing electrostatic latent images and a production method for the same
    Patent number: 7547498
    Abstract: A toner for developing electrostatic images which contains an external additive A containing an irregular-shaped metal oxide and having an average value of the feret's horizontal diameter of from 20 nm to 1370 nm, and an external additive B containing a hydrophobic particle having an average value of the feret's horizontal diameter of from 10 nm to 45 nm.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: June 16, 2009
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Kenji Yamane, Masafumi Uchida, Yasuko Yamauchi
  • Toner for developing a latent image and an image forming method employing the same
    Patent number: 7531280
    Abstract: A toner for developing an electrostatic charge image comprising a resin, a colorant, and a particle having domain-matrix structure and the particle having two or more kinds of metal elements.
    Type: Grant
    Filed: January 7, 2008
    Date of Patent: May 12, 2009
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Yasuko Yamauchi, Hiroshi Yamazaki, Masafumi Uchida, Kenji Yamane
  • TONER FOR DEVELOPING A LATENT IMAGE AND AN IMAGE FORMING METHOD EMPLOYING THE SAME
    Publication number: 20080176161
    Abstract: A toner for developing an electrostatic charge image comprising a resin, a colorant, and a particle having domain-matrix structure and the particle having two or more kinds of metal elements.
    Type: Application
    Filed: January 7, 2008
    Publication date: July 24, 2008
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Yasuko Yamauchi, Hiroshi Yamazaki, Masafumi Uchida, Kenji Yamane
  • Toner for developing a latent image and an image forming method employing the same
    Patent number: 7316880
    Abstract: A toner for developing an electrostatic charge image comprising a resin, a colorant, and a particle having domain-matrix structure and the particle having two or more kinds of metal elements.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: January 8, 2008
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Yasuko Yamauchi, Hiroshi Yamazaki, Masafumi Uchida, Kenji Yamane
  • Server device and recording medium for same
    Patent number: 7225144
    Abstract: A network-based server device for managing product inventory information on an individual-store basis, the server device including a receiving unit receiving requests for product information from a client device, and a processing unit transmitting, to the client device in response to the request for product information, product inventory information on an individual-store basis corresponding to stores selected on the basis of client or customer identification information.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: May 29, 2007
    Assignee: Fujitsu Limited
    Inventors: Ichiro Hashimoto, Koji Nozawa, Yasuko Yamauchi
  • Portal site providing system
    Patent number: 7206996
    Abstract: A portal site providing machine 20 obtains web pages provided by websites A–E at regular time intervals, and compares the latest web pages with the old web pages obtained last time. Then, the item-by-item comparison is made between the latest and old web pages to determine the degree of updating of the contents. The portal site providing machine 20 provides a portal page which contains images representing respective sites A–E with corresponding size and arrangement according to the degrees of updating.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: April 17, 2007
    Assignee: Fujitsu Limited
    Inventors: Ichiro Hashimoto, Yoshitaka Hayashi, Yukihiro Matsubara, Kazuko Hayashi, Yasuko Yamauchi, Tetsunari Kawaguchi, Yoko Yamamoto, Hisaki Yokogawa
  • Electrostatic image developing toner and two-component developing agent
    Patent number: 7186493
    Abstract: A toner for developing an electrostatic image is disclosed. The toner comprises toner particles comprising a resin and a colorant, and the toner comprises metal oxide particles have a domain-matrix structure comprising a domain and a matrix.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: March 6, 2007
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Kenji Yamane, Ken Ohmura, Yasuko Yamauchi
  • Electrostatic image developing toner and image forming method
    Publication number: 20070042285
    Abstract: An electrostatic image developing toner is disclosed, comprising toner particles composed of a core containing resin and a colorant and a shell containing a resin, wherein the standard deviation of shape factor SF-1 of the toner particles and the standard deviation of shape factor SF-2 fall within the specific range, and the ratio of maximum thickness of the shell to minimum thickness falls within the specific range.
    Type: Application
    Filed: June 26, 2006
    Publication date: February 22, 2007
    Inventors: Ryuji Kitani, Kenji Yamane, Yasuko Yamauchi, Kouji Sugama
  • Stabilization of amrubicin hydrochloride
    Publication number: 20060247185
    Abstract: A stabilized amrubicin hydrochloride composition which comprises 3 to 8 wt. % water and 92 to 97 wt. % amrubicin hydrochloride; and a method of storing amrubicin hydrochloride.
    Type: Application
    Filed: June 28, 2006
    Publication date: November 2, 2006
    Inventors: Kazuhiko Takahashi, Koji Fujimoto, Yasuko Yamauchi
  • Stabilization of amrubicin hydrochloride
    Patent number: 7091188
    Abstract: A stabilized amrubicin hydrochloride composition which comprises 3 to 8 wt. % water and 92 to 97 wt. % amrubicin hydrochloride; and a method of storing amrubicin hydrochloride.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: August 15, 2006
    Assignees: Sumitomo Chemical Company, Limited, Dainippon Sumitomo Pharma Co., Ltd.
    Inventors: Kazuhiko Takahashi, Koji Fujimoto, Yasuko Yamauchi, Takanori Okahashi
  • Toner particle having a hardnes of 6.0 to 24.0 mN and a circularity of 0.92 to 0.99
    Patent number: 7018765
    Abstract: An electrostatic photographic image forming toner is disclosed. The toner comprises a toner particle containing a binder resin and a colorant in which the binder resin has a specific softening point of from 105 to 132° C. and the toner particle has a hardness of from 6.0 to 24.0 mN and a circularity of from 0.92 to 0.99.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: March 28, 2006
    Assignee: Konica Corporation
    Inventors: Tsuyoshi Uchida, Masafumi Uchida, Michiaki Ishikawa, Takao Yamanouchi, Ryuji Kitani, Yasuko Yamauchi
  • Toner for developing electrostatic latent images and a production method for the same
    Publication number: 20050147908
    Abstract: A toner for developing electrostatic images which contains an external additive A containing an irregular-shaped metal oxide and having an average value of the feret's horizontal diameter of from 20 nm to 1370 nm, and an external additive B containing a hydrophobic particle having an average value of the feret's horizontal diameter of from 10 nm to 45 nm.
    Type: Application
    Filed: October 13, 2004
    Publication date: July 7, 2005
    Inventors: Kenji Yamane, Masafumi Uchida, Yasuko Yamauchi
  • Toner for developing a latent image and an image forming method employing the same
    Publication number: 20050058925
    Abstract: A toner for developing an electrostatic charge image comprising a resin, a colorant, and a particle having domain-matrix structure and the particle having two or more kinds of metal elements.
    Type: Application
    Filed: August 23, 2004
    Publication date: March 17, 2005
    Inventors: Yasuko Yamauchi, Hiroshi Yamazaki, Masafumi Uchida, Kenji Yamane
  • Stabilization of amrubicin hydrochloride
    Publication number: 20040249137
    Abstract: A stabilized amrubicin hydrochloride composition which comprises 3 to 8 wt. % water and 92 to 97 wt. % amrubicin hydrochloride; and a method of storing amrubicin hydrochloride.
    Type: Application
    Filed: March 17, 2004
    Publication date: December 9, 2004
    Inventors: Kazuhiko Takahashi, Koji Fujimoto, Yasuko Yamauchi, Takanori Okahashi
  • Electrostatic image developing
    Patent number: 6806012
    Abstract: An electrostatic image developing toner is disclosed. The resin of the toner particle has a cell structure and an average value of FERE-horizontal diameters of the cells is from 20 to 200 nm and a variation coefficient of the FERE-horizontal diameters of the cells is from 10 to 35%.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: October 19, 2004
    Assignee: Konica Corporation
    Inventors: Yasuko Yamauchi, Ken Ohmura, Masafumi Uchida
  • Electrostatic image developing toner and two-component developing agent
    Publication number: 20040197692
    Abstract: A toner for developing an electrostatic image is disclosed. The toner comprises toner particles comprising a resin and a colorant, and the toner comprises metal oxide particles have a domain-matrix structure comprising a domain and a matrix.
    Type: Application
    Filed: March 22, 2004
    Publication date: October 7, 2004
    Applicant: Konica Minolta Holdings, Inc.
    Inventors: Kenji Yamane, Ken Ohmura, Yasuko Yamauchi
  • Toner for developing static latent image to form color image
    Patent number: 6753122
    Abstract: A toner for forming a color image comprises chromatic toners and a black toner is disclosed. Each of the toners is produced by polymerization of a polymerizable monomer in an aqueous medium, the difference of re-dispersion electro-conductivity of each of the toners is within the range of from 0.8 to 12 &mgr;s/cm, the number of free colorant particles on the black toner surface is less than 9 per 500 toner particles, and a light absorbance at 500 nm of a black toner dispersion is nor more than 0.08.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: June 22, 2004
    Assignee: Konica Corporation
    Inventors: Ken Ohmura, Ryuji Kitani, Yasuko Yamauchi, Kaori Soeda
  • Toner and image forming method
    Publication number: 20030215732
    Abstract: An electrostatic photographic image forming toner is disclosed. The toner comprises a toner particle containing a binder resin and a colorant in which the binder resin has a specific softening point of from 105 to 132° C. and the toner particle has a hardness of from 6.0 to 24.0 mN and a circularity of from 0.92 to 0.99.
    Type: Application
    Filed: April 29, 2003
    Publication date: November 20, 2003
    Inventors: Tsuyoshi Uchida, Masafumi Uchida, Michiaki Ishikawa, Takao Yamanouchi, Ryuji Kitani, Yasuko Yamauchi
  • Electrostatic image developing
    Publication number: 20030091920
    Abstract: An electrostatic image developing toner is disclosed. The resin of the toner particle has a cell structure and an average value of FERE-horizontal diameters of the cells is from 20 to 200 nm and a coefficient of the FERE-horizontal diameters of the cells is from 10 to 35%.
    Type: Application
    Filed: September 16, 2002
    Publication date: May 15, 2003
    Inventors: Yasuko Yamauchi, Ken Ohmura, Masafumi Uchida