Patents by Inventor Mayumi Kimura

Mayumi Kimura 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: 6663949
    Abstract: A deodorizing absorbent sheet having a water-insoluble deodorizer and an absorbent polymer which are embedded in a fiber web, wherein the absorbent polymer is fixed to the fibers making up the fiber web. The deodorizer is fixed inside the fiber web via the absorbent polymer. The deodorizer and absorbent polymer are substantially absent on the surface of the absorbent sheet.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: December 16, 2003
    Assignee: Kao Corporation
    Inventors: Masahito Tanaka, Mayumi Kimura, Futoshi Teranishi, Mitsugu Hamajima, Minoru Nakanishi
  • Publication number: 20030083214
    Abstract: A semiconductor surface cleaning agent containing a compound the molecule of which has a nitrogen atom having an unshared electron pair and used for cleaning the surface of a semiconductor on which copper wiring is provided, and a method for cleaning the surface of a semiconductor characterized by treating the surface of a semiconductor on which copper wiring is provided with such a cleaning agent The cleaning agent does not corrode the copper wiring (copper thin film) on the semiconductor and SiO2 of the interlayer insulating film, does not impair the flatness of the surface, and is effective in removing CuO and particles adhering to the surface at the Cu-CMP step.
    Type: Application
    Filed: August 27, 2002
    Publication date: May 1, 2003
    Inventors: Masahiko Kakizawa, Mayumi Kimura, Hironori Mizuta, Ichiro Hayashida
  • Patent number: 6551297
    Abstract: An absorbent article includes a liquid-permeable top layer, a liquid-impermeable back layer, and a liquid-retentive absorbent member interposed between the top layer and the back layer. The absorbent member is arranged such that a pair of absorbent barrier cuffs having a prescribed width are formed at respective left and right opposing side portions of the top layer in the width-wise direction thereof, and liquid-shrinkable members, which can elastically shrink upon absorption of liquid, are disposed within the barrier cuffs and extend in the longitudinal direction of the barrier cuffs.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: April 22, 2003
    Assignee: Kao Corporation
    Inventors: Masahito Tanaka, Mayumi Kimura, Hironori Kawasaki, Mitsugu Hamajima, Minoru Nakanishi, Jinko Noguchi
  • Patent number: 6506959
    Abstract: An absorbent article comprising a liquid permeable topsheet, a liquid impermeable backsheet, and a liquid retentive absorbent layer is disclosed. The absorbent layer comprises a superabsorbent polymer and hydrophilic fiber or foam that does not swell with water or hydrophilic fiber or foam that has a water retention of 0.7 g/g or less when it is swollen with water and then dewatered by centrifugation. The absorbent article has a physiological saline fixing ratio of 90% or more when it absorbs 10 g of physiological saline and, after 5 minutes, is dewatered by centrifugation.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: January 14, 2003
    Assignee: Kao Corporation
    Inventors: Mitsugu Hamajima, Mayumi Kimura, Yasuo Toyoshima, Minoru Nakanishi
  • Publication number: 20020128625
    Abstract: An absorbent article comprising a liquidpermeable top layer, a liquidimpermeable back layer, and a liquidretentive absorbent member interposed between the top layer and the back layer, wherein the absorbent member is arranged such that a pair of absorbent barrier cuffs having a prescribed width are each formed at left and right opposing side portions of the top layer in the widthwise direction thereof and liquidshrinkable members, which can elastically shrink upon absorption of liquid, are disposed within said barrier cuffs and extend in the longitudinal direction of said barrier cuffs.
    Type: Application
    Filed: January 11, 1999
    Publication date: September 12, 2002
    Inventors: MASAHITO TANAKA, MAYUMI KIMURA, HIRONORI KAWASAKI, MITSUGU HAMAJIMA, MINORU NAKANISHI, JINKO NOGUCHI
  • Publication number: 20010039406
    Abstract: An absorbent article comprising a liquid permeable topsheet, a liquid impermeable backsheet, and a liquid retentive absorbent layer is disclosed. The absorbent layer comprises a superabsorbent polymer and hydrophilic fiber or foam that does not swell with water or hydrophilic fiber or foam that has a water retention of 0.7 g/g or less when it is swollen with water and then dewatered by centrifugation. The absorbent article has a physiological saline fixing ratio of 90% or more when it absorbs 10 g of physiological saline and, after 5 minutes, is dewatered by centrifugation.
    Type: Application
    Filed: March 29, 2001
    Publication date: November 8, 2001
    Inventors: Mitsugu Hamajima, Mayumi Kimura, Yasuo Toyoshima, Minoru Nakanishi
  • Patent number: 6293935
    Abstract: An absorbent article (1) comprising a liquid permeable top layer (10), a liquid impermeable back layer (20), and a liquid retentive absorbent member (30) interposed between the top layer (10) and the back layer (20), wherein the absorbent member (30) includes an absorbent sheet (31) having a thickness of 0.3 mm to 5 mm, the absorbent sheet being arranged such that a barrier cuff having a prescribed width is formed at the central portion of the top layer in the widthwise direction thereof, wherein said absorbent member is provided with liquid shrinkable members, which can elastically shrink upon the absorption of the liquid at the surface of said absorbent member facing said top layer and/or inside said absorbent member and in the vicinity of said surface, such that said absorbent member elastically shrinks over a prescribed length.
    Type: Grant
    Filed: January 13, 1999
    Date of Patent: September 25, 2001
    Assignee: Kao Corporation
    Inventors: Mayumi Kimura, Hironori Kawasaki, Masahito Tanaka, Mitsugu Hamajima, Minoru Nakanishi, Takao Nakayama
  • Patent number: 6245473
    Abstract: An electrophotographic photosensitive member comprises a conductive support and a photosensitive layer which comprises a charge generation layer and a charge transport layer, characterized in that the charge generation layer contains a polycarbonate resin, and the electrophotographic photosensitive member is electrostatically charged by applying a direct current voltage to a charging member in contact with the surface of said electrophotographic photosensitive member.
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: June 12, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideki Anayama, Toshiyuki Yoshihara, Itaru Yamazaki, Hideyuki Ainoya, Hidetoshi Hirano, Mayumi Kimura
  • Patent number: 5810796
    Abstract: An absorbent article which comprises at least a liquid retentive absorbent member and a liquid impermeable antileakage layer, wherein the liquid retentive absorbent member has a bending stiffness of 0.05 to 1.0 gf.multidot.cm along its lateral direction and a compressive modulus of 2.times.10.sup.6 to 1.times.10.sup.8 dyne/cm.sup.2 along its lateral direction.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: September 22, 1998
    Assignee: KAO Corporation
    Inventors: Mayumi Kimura, Yayoi Fukuhara, Mitsugu Hamajima, Minoru Nakanishi
  • Patent number: 5610690
    Abstract: An electrophotographic apparatus includes an electrophotographic photosensitive member, a charging member, an imagewise exposure system, a developing system having a toner feed member, a transfer system, and a cleaning system wherein the electrophotographic photosensitive member includes a surface layer containing a lubricative, fluorine-containing resin powder and the toner feed member includes a spacer member coming into contact with the surface layer of the electrophotographic photosensitive member; and also a process cartridge than can be detachably mounted on the electrophotographic apparatus.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: March 11, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiyuki Yoshihara, Hideki Anayama, Itaru Yamazaki, Hideyuki Ainoya, Hidetoshi Hirano, Mayumi Kimura
  • Patent number: 5595845
    Abstract: An electrophotographic photosensitive member is constituted by disposing charge generation layer and a charge transport layer in succession on a support. The charge generation layer contains oxytitanium phthalocyanine, an azo pigment and a hindered phenol. The electrophotographic photosensitive member including such a charge generation layer is usable for providing an apparatus unit and an electrophotographic apparatus showing excellent electrophotographic characteristics such as a suppressed photomemory, good potential stability in repetitive use and good image-forming properties.
    Type: Grant
    Filed: June 9, 1995
    Date of Patent: January 21, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuo Maeda, Hideki Anayama, Yoichi Kawamorita, Hiroyuki Ohmori, Mayumi Kimura
  • Patent number: 5538826
    Abstract: An electrophotographic photosensitive member having a surface layer comprising a bisphenol Z-type polycarbonate resin is charged by contact charging. The charged electrophotographic photosensitive member is then subjected to imagewise exposure to form an electrostatic latent image on the photosensitive member, the thus formed electrostatic latent image on the electrophotographic photosensitive member is developed. The electrophotographic photosensitive member shows good resistance to wearing and toner sticking when subjected to electrophotographic image formation including a contact charging process.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: July 23, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideyuki Ainoya, Toshiyuki Yoshihara, Hideki Anayama, Itaru Yamazaki, Hidetoshi Hirano, Mayumi Kimura
  • Patent number: 5046754
    Abstract: A vehicle height control device is adapted to operate even after turning off of the engine ignition switch within a first period only for lowering vehicle height when it exceeds a limit value which is higher than a limit value normally employed for vehicle height lowering control when the ignition switch is turned on, toward a limit value which is higher than the above second-mentioned limit value and further, such a vehicle height lowering control after ignition turn off is carried out, if a door or the trunk of the vehicle is open during the first period, after the door or the trunk has been closed within a second period longer than the first period.
    Type: Grant
    Filed: May 10, 1990
    Date of Patent: September 10, 1991
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mayumi Kimura, Yasuhiro Ashida, Masami Ito