Hideaki Ema

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Shimizu, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of reversible selective manifestation of different states of...
- Patent number 6,656,879
- Issue date Dec 2, 2003
- Ricoh Company, Ltd.
- Kyoji Tsutsui
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Transparent thermal recording medium
- Patent number 5,741,752
- Issue date Apr 21, 1998
- Ricoh Company, Ltd.
- Hiroshi Goto
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Transparent thermal recording medium
- Patent number 5,739,077
- Issue date Apr 14, 1998
- Ricoh Company, Ltd.
- Hiroshi Goto
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Reversible thermosensitive coloring composition, recording medium,...
- Patent number 5,432,534
- Issue date Jul 11, 1995
- Ricoh Company, Ltd.
- Shoji Maruyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Reversible thermosensitive coloring composition, recording medium,...
- Patent number 5,395,433
- Issue date Mar 7, 1995
- Ricoh Company, Ltd.
- Shoji Maruyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Reversible thermosensitive coloring recording medium, recording met...
- Patent number 5,296,439
- Issue date Mar 22, 1994
- Ricoh Company, Ltd.
- Shoji Maruyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method of manufacturing masked semiconductor laser
- Patent number 4,840,922
- Issue date Jun 20, 1989
- Ricoh Company, Ltd.
- Hiroshi Kobayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of measuring the amount of movement of an object having unif...
- Patent number 4,823,001
- Issue date Apr 18, 1989
- Ricoh Company, Ltd.
- Hiroshi Kobayashi
- G01 - MEASURING TESTING
Information Patent Grant
Fixing roll
- Patent number 4,603,087
- Issue date Jul 29, 1986
- Ricoh Co., Ltd.
- Hideaki Ema
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic light-sensitive member with thin overlayer
- Patent number 4,469,771
- Issue date Sep 4, 1984
- Ricoh Co., Ltd.
- Haruo Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic photoconductor of halogen-doped Se-Te alloy layers
- Patent number 4,379,820
- Issue date Apr 12, 1983
- Ricoh Company, Ltd.
- Hitoshi Nakamura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Halogen doped selenium-tellurium alloy electrophotographic photocon...
- Patent number 4,286,035
- Issue date Aug 25, 1981
- Ricoh Company, Ltd.
- Hideyo Nishizima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic light-sensitive member
- Patent number 4,225,648
- Issue date Sep 30, 1980
- Ricoh Company, Ltd.
- Haruo Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photosensitive material for electrophotography with dye containing...
- Patent number 4,191,568
- Issue date Mar 4, 1980
- Ricoh Co., Ltd.
- Hideaki Ema
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
METHOD OF REVERSIBLE SELECTIVE MANIFESTATION OF DIFFERENT STATES OF...
- Publication number 20030114303
- Publication date Jun 19, 2003
- KYOJI TSUTSUI
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Hideaki Ema

Person

Patents Grantslast 30 patents

Method of reversible selective manifestation of different states of...

Transparent thermal recording medium

Transparent thermal recording medium

Reversible thermosensitive coloring composition, recording medium,...

Reversible thermosensitive coloring composition, recording medium,...

Reversible thermosensitive coloring recording medium, recording met...

Method of manufacturing masked semiconductor laser

Method of measuring the amount of movement of an object having unif...

Fixing roll

Electrophotographic light-sensitive member with thin overlayer

Electrophotographic photoconductor of halogen-doped Se-Te alloy layers

Halogen doped selenium-tellurium alloy electrophotographic photocon...

Electrophotographic light-sensitive member

Photosensitive material for electrophotography with dye containing...

Patents Applicationslast 30 patents

METHOD OF REVERSIBLE SELECTIVE MANIFESTATION OF DIFFERENT STATES OF...