Mitsuru Hashimoto

Person

Numazu, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Charge transporting materials and electrophotographic photoconducto...
- Patent number 5,616,801
- Issue date Apr 1, 1997
- Ricoh Company, Ltd.
- Tomoyuki Shimada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Charge transporting materials and electrophotographic photoconducto...
- Patent number 5,462,826
- Issue date Oct 31, 1995
- Ricoh Company, Ltd.
- Tomoyuki Shimada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Bisazo compounds useful as charge generating materials
- Patent number 5,459,247
- Issue date Oct 17, 1995
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photoconductive composition containing trisazo and disazo compounds
- Patent number 5,370,954
- Issue date Dec 6, 1994
- Ricoh Company, Ltd.
- Katsuichi Ohta
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Bisazo electrophotographic photoconductor
- Patent number 5,344,735
- Issue date Sep 6, 1994
- Ricoh Company, Ltd.
- Masaomi Sasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Bisazo compounds useful as organic photoconductive materials
- Patent number 5,317,093
- Issue date May 31, 1994
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1,3-pentadiene derivatives and electrophotographic photoconductor u...
- Patent number 5,260,156
- Issue date Nov 9, 1993
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Polyolefin amino derivatives
- Patent number 5,252,750
- Issue date Oct 12, 1993
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aromatic diolefinic compounds, aromatic diethyl compounds and elect...
- Patent number 5,250,377
- Issue date Oct 5, 1993
- Ricoh Company, Ltd.
- Tomoyuki Shimada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Benzylideneindene compounds and electrophotographic photoconductor...
- Patent number 5,250,733
- Issue date Oct 5, 1993
- Ricoh Company, Ltd.
- Tamotsu Aruga
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
1,3-pentadiene derivatives and electrophotographic photoconductor u...
- Patent number 5,166,438
- Issue date Nov 24, 1992
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Aromatic diolefinic compounds, aromatic diethyl compounds and elect...
- Patent number 5,159,087
- Issue date Oct 27, 1992
- Ricoh Company, Ltd.
- Tomoyuki Shimada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electroluminescent device
- Patent number 5,118,986
- Issue date Jun 2, 1992
- Ricoh Company, Ltd.
- Teruyuki Ohnuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Bisazo pigments for use in electrophotographic photoconductors
- Patent number 5,097,022
- Issue date Mar 17, 1992
- Ricoh Company, Ltd.
- Masaomi Sasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electroluminescent devices
- Patent number 5,077,142
- Issue date Dec 31, 1991
- Ricoh Company, Ltd.
- Yohta Sakon
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
1,14-bis(4-nitrophenyl)-1,3,5,7,9,11,13-tetradecaheptaene and prepa...
- Patent number 5,072,061
- Issue date Dec 10, 1991
- Ricoh Company, Ltd.
- Masaomi Sasaki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyolefin derivatives
- Patent number 5,068,350
- Issue date Nov 26, 1991
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electrophotographic photoconductor and polyolefin derivatives emplo...
- Patent number 4,965,157
- Issue date Oct 23, 1990
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Benzylideneindene compounds and electrophotographic photoconductor...
- Patent number 4,959,290
- Issue date Sep 25, 1990
- Ricoh Company, Ltd.
- Tamotsu Aruga
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electrophotographic photoconductor having an arylalkylenearylamino...
- Patent number 4,931,350
- Issue date Jun 5, 1990
- Ricoh Company, Ltd.
- Tomoyuki Shimada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoconductor
- Patent number 4,925,758
- Issue date May 15, 1990
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoconductor
- Patent number 4,916,039
- Issue date Apr 10, 1990
- Ricoh Company, Ltd.
- Mitsuru Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Aminobiphenyl charge transporting materials and electrophotographic...
- Patent number 4,898,800
- Issue date Feb 6, 1990
- Ricoh Company, Ltd.
- Tomoyuki Shimada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Aromatic diolefinic compounds, aromatic diethyl compounds and elect...
- Patent number 4,886,846
- Issue date Dec 12, 1989
- Ricoh Company, Ltd.
- Tomoyuki Shimada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Electrophotographic photoconductor
- Patent number 4,830,942
- Issue date May 16, 1989
- Ricoh Company Ltd.
- Toshio Fukagai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Thermosensitive image transfer recording medium
- Patent number 4,784,905
- Issue date Nov 15, 1988
- Ricoh Company, Ltd.
- Akira Suzuki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Photosensitive material containing disazo compound for use in elect...
- Patent number 4,708,921
- Issue date Nov 24, 1987
- Ricoh Co., Ltd.
- Mitsuru Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photosensitive material containing disazo compound for use in elect...
- Patent number 4,666,805
- Issue date May 19, 1987
- Ricoh Co., Ltd.
- Mitsuru Hashimoto
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Disazo compound having an anthraquinone nucleus
- Patent number 4,656,257
- Issue date Apr 7, 1987
- Ricoh Co., Ltd.
- Mitsuru Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Tetrazonium salt compound, disazo compound, method for preparing th...
- Patent number 4,619,878
- Issue date Oct 28, 1986
- Ricoh Co., Ltd.
- Mitsuru Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Mitsuru Hashimoto

Person

Patents Grantslast 30 patents

Charge transporting materials and electrophotographic photoconducto...

Charge transporting materials and electrophotographic photoconducto...

Bisazo compounds useful as charge generating materials

Photoconductive composition containing trisazo and disazo compounds

Bisazo electrophotographic photoconductor

Bisazo compounds useful as organic photoconductive materials

1,3-pentadiene derivatives and electrophotographic photoconductor u...

Polyolefin amino derivatives

Aromatic diolefinic compounds, aromatic diethyl compounds and elect...

Benzylideneindene compounds and electrophotographic photoconductor...

1,3-pentadiene derivatives and electrophotographic photoconductor u...

Aromatic diolefinic compounds, aromatic diethyl compounds and elect...

Electroluminescent device

Bisazo pigments for use in electrophotographic photoconductors

Electroluminescent devices

1,14-bis(4-nitrophenyl)-1,3,5,7,9,11,13-tetradecaheptaene and prepa...

Polyolefin derivatives

Electrophotographic photoconductor and polyolefin derivatives emplo...

Benzylideneindene compounds and electrophotographic photoconductor...

Electrophotographic photoconductor having an arylalkylenearylamino...

Electrophotographic photoconductor

Electrophotographic photoconductor

Aminobiphenyl charge transporting materials and electrophotographic...

Aromatic diolefinic compounds, aromatic diethyl compounds and elect...

Electrophotographic photoconductor

Thermosensitive image transfer recording medium

Photosensitive material containing disazo compound for use in elect...

Photosensitive material containing disazo compound for use in elect...

Disazo compound having an anthraquinone nucleus

Tetrazonium salt compound, disazo compound, method for preparing th...