Toshihiro Masaoka

Person

Osaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Heat-sensitive color-developing composition and heat-sensitive reco...
- Patent number 8,888,906
- Issue date Nov 18, 2014
- Yamamoto Chemicals, Inc.
- Ryoji Yamaguchi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Optical recording medium and dipyrromethene metal chelate compound...
- Patent number 6,355,327
- Issue date Mar 12, 2002
- Mitsui Chemicals, Inc.
- Tsutami Misawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium and dipyrromethene metal chelate compound...
- Patent number 6,162,520
- Issue date Dec 19, 2000
- Mitsui Chemicals, Inc.
- Tsutami Misawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Diiminoisoindoline compound and the process for producing the compo...
- Patent number 6,093,832
- Issue date Jul 25, 2000
- Yamamoto Chemicals, Inc.
- Yojiro Kumagae
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Phthalocyanine compound, its intermediate, process for producing th...
- Patent number 5,973,140
- Issue date Oct 26, 1999
- Yamamoto Chemicals, Inc.
- Yojiro Kumagae
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Phthalide compound and a near infrared absorber and a recording mat...
- Patent number 5,627,287
- Issue date May 6, 1997
- Yamamoto Chemicals, Inc.
- Hiroyuki Sasaki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing alkoxyphthalocyanine
- Patent number 5,334,714
- Issue date Aug 2, 1994
- Mitsui Toatsu Chemicals, Incorporated
- Takahisa Oguchi
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method for preparation alkoxyphthalocyanine
- Patent number 5,220,010
- Issue date Jun 15, 1993
- Mitsui Toatsu Chemicals, Incorporated
- Takahisa Oguchi
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

Information Patent Application
HEAT-SENSITIVE COLOR-DEVELOPING COMPOSITION AND HEAT-SENSITIVE RECO...
- Publication number 20130180430
- Publication date Jul 18, 2013
- YAMAMOTO CHEMICALS, INC.
- Ryoji Yamaguchi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Toshihiro Masaoka

Person

Patents Grantslast 30 patents

Heat-sensitive color-developing composition and heat-sensitive reco...

Optical recording medium and dipyrromethene metal chelate compound...

Optical recording medium and dipyrromethene metal chelate compound...

Diiminoisoindoline compound and the process for producing the compo...

Phthalocyanine compound, its intermediate, process for producing th...

Phthalide compound and a near infrared absorber and a recording mat...

Method for preparing alkoxyphthalocyanine

Method for preparation alkoxyphthalocyanine

Patents Applicationslast 30 patents

HEAT-SENSITIVE COLOR-DEVELOPING COMPOSITION AND HEAT-SENSITIVE RECO...