YAMADA CHEMICAL CO., LTD., A CORP. OF JAPAN

Organization

MINAMI-KU, JP

Organizations

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Patents Grantslast 30 patents

Information Patent Grant
Metal-containing azo compound and optical recording media
- Patent number 6,551,682
- Issue date Apr 22, 2003
- Matsushita Electric Industrial Co., Ltd.
- Yoshihiro Tosaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Phthalocyanine compounds
- Patent number 6,043,355
- Issue date Mar 28, 2000
- Ricoh Company, Ltd.
- Toru Yashiro
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Optical recording medium and method of producing the same
- Patent number 5,968,708
- Issue date Oct 19, 1999
- Ricoh Company, Ltd.
- Toru Yashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium and method of producing the same
- Patent number 5,580,696
- Issue date Dec 3, 1996
- Ricoh Company, Ltd.
- Toru Yashiro
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Optical information recording medium
- Patent number 5,532,033
- Issue date Jul 2, 1996
- Ricoh Company, Ltd.
- Toru Yashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Phthalide compound and recording material using the compound
- Patent number 5,286,702
- Issue date Feb 15, 1994
- Yamada Chemical Co., Ltd.
- Yutaka Muraki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Thermosensitive recording material
- Patent number 5,179,066
- Issue date Jan 12, 1993
- Yamada Chemical Co., Ltd.
- Manabu Yamada
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Process for producing 1,1-diphenylalkenes
- Patent number 4,892,973
- Issue date Jan 9, 1990
- Yamada Chemical Co., Ltd.
- Kozo Mizuno
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing 3,3-bis-(4-dimethylaminophenyl)-6-dimethylami...
- Patent number 4,845,245
- Issue date Jul 4, 1989
- Yamada Chemical Co., Ltd.
- Yoshiharu Fujino
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Divinyl compounds and chromogenic recording-material prepared by us...
- Patent number 4,835,291
- Issue date May 30, 1989
- Yamada Chemical Co., Ltd.
- Hajime Kawai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Chromogenic quinoline compounds
- Patent number 4,820,841
- Issue date Apr 11, 1989
- Yamada Chemical Co., Ltd.
- Hideaki Fujisaki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Heat-sensitive recording material
- Patent number 4,814,320
- Issue date Mar 21, 1989
- Yamada Chemical Co., Ltd.
- Hajime Kawai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Divinyl compounds and chromogenic recording-material prepared by us...
- Patent number 4,808,567
- Issue date Feb 28, 1989
- Yamada Chemical Co., Ltd.
- Hajime Kawai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Chromogenic azaphthalide compound and a colour-forming recording co...
- Patent number 4,747,875
- Issue date May 31, 1988
- Yamada Chemical Co., Ltd.
- Hajime Kawai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Chromogenic 1-(3-methoxy-4-alkoxyphenyl)-2-(2'-quinolyl)ethylene co...
- Patent number 4,598,150
- Issue date Jul 1, 1986
- Yamada Chemical Co. Ltd
- Hideaki Fujisaki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Chromogenic compounds
- Patent number 4,564,679
- Issue date Jan 14, 1986
- Yamada Chemical Co., Ltd.
- Yoshiharu Fujino
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Chromogenic compounds and the use thereof as color former in copyin...
- Patent number 4,444,591
- Issue date Apr 24, 1984
- Yamada Chemical Co., Ltd.
- Hajime Kawai
- C07 - ORGANIC CHEMISTRY

YAMADA CHEMICAL CO., LTD., A CORP. OF JAPAN

Organization

Patents Grantslast 30 patents

Metal-containing azo compound and optical recording media

Phthalocyanine compounds

Optical recording medium and method of producing the same

Optical recording medium and method of producing the same

Optical information recording medium

Phthalide compound and recording material using the compound

Thermosensitive recording material

Process for producing 1,1-diphenylalkenes

Process for producing 3,3-bis-(4-dimethylaminophenyl)-6-dimethylami...

Divinyl compounds and chromogenic recording-material prepared by us...

Chromogenic quinoline compounds

Heat-sensitive recording material

Divinyl compounds and chromogenic recording-material prepared by us...

Chromogenic azaphthalide compound and a colour-forming recording co...

Chromogenic 1-(3-methoxy-4-alkoxyphenyl)-2-(2'-quinolyl)ethylene co...

Chromogenic compounds

Chromogenic compounds and the use thereof as color former in copyin...