Patents by Inventor Teruyuki Mitsumori

Teruyuki Mitsumori 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).

  • Electrophotographic photoreceptor
    Patent number: 6482560
    Abstract: A high-sensitivity and long-life electrophotographic photoreceptor comprising an electroconductive substrate and at least a photosensitive layer on the electroconductive substrate is provided, wherein the photosensitive layer contains a polyarylate resin not having a nitrogen atom in its repeating unit, and the Hall mobility at an electric field strength of 3×105 (V/cm) and at a temperature of 21° C. of the photosensitive layer is 3×10−6 (cm2/Vs) or more.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: November 19, 2002
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Teruyuki Mitsumori, Akiteru Fujii, Mamoru Nozomi, Satoshi Kato, Yuuta Kumano
  • Electrophotographic photoreceptor
    Publication number: 20010049067
    Abstract: A high-sensitivity and long-life electrophotographic photoreceptor comprising an electroconductive substrate and at least a photosensitive layer on the electroconductive substrate is provided, wherein the photosensitive layer contains a polyarylate resin not having a nitrogen atom in its repeating unit, and the Hall mobility at an electric field strength of 3×105 (V/cm) and at a temperature of 21° C. of the photosensitive layer is 3×10−6 (cm2/Vs) or more.
    Type: Application
    Filed: December 19, 2000
    Publication date: December 6, 2001
    Inventors: Teruyuki Mitsumori, Akiteru Fujii, Mamoru Nozomi, Satoshi Kato, Yuuta Kumano
  • Electrophotographic photoreceptor containing charge-transporting material with butadiene structure
    Patent number: 6030734
    Abstract: An electrophotographic photoreceptor having a photosensitive layer containing a charge-generating material and a charge-transporting material on an electroconductive substrate, wherein the charge-transporting material has a butadiene structure and a total amount W of .pi. electron number and lone electron number of nitrogen of the charge-transporting material is at least 60.
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: February 29, 2000
    Assignee: Mitsubishi Chemical Corporation
    Inventor: Teruyuki Mitsumori
  • Electrophotographic photoreceptor
    Patent number: 5932384
    Abstract: An electrophotographic photoreceptor having a photosensitive layer containing a charge generation material and a charge transport material on an electroconductive substrate, wherein the charge transport material has a polarizability .alpha. of the formula, .alpha.>100 (.ANG..sup.3) and a dipole moment P of the formula, P<1.6 (D).
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: August 3, 1999
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Teruyuki Mitsumori, Takayuki Shouda, Akiteru Fujii, Mikiko Sato
  • Electrophotographic photoreceptor containing an arylamine type compound
    Patent number: 5804344
    Abstract: An electrophotographic photoreceptor having a photosensitive layer containing an arylamine type compound on an electroconductive substrate,the arylamine type compound having the formula (1), ##STR1## wherein X.sub.1 has the formula (2);.paren open-st.CR.sub.7 .dbd.CR.sub.8 .paren close-st..sub.i --CR.sub.9 .dbd.CR.sub.10 R.sub.11 (2),andX.sub.2 has the formula (2');.paren open-st.CR.sub.12 .dbd.CR.sub.13 .paren close-st..sub.h --CR.sub.14 .dbd.CR.sub.15 R.sub.16 (2').
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: September 8, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventor: Teruyuki Mitsumori
  • Electrophotographic photoreceptor
    Patent number: 5753393
    Abstract: In the invention, there is provided an electrophotographic photoreceptor comprising a conductive substrate and a photosensitive layer formed thereon, said photosensitive layer containing an arylamine hydrazone compound represented by the following formula ?I!.
    Type: Grant
    Filed: May 22, 1996
    Date of Patent: May 19, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Teruyuki Mitsumori, Tetsuo Murayama, Atsuo Saita