Yasuhisa Iwasaki

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Patents Grantslast 30 patents

Information Patent Grant
Polymethine compounds, method of producing same, and use thereof
- Patent number RE39105
- Issue date May 23, 2006
- Yamamoto Chemicals, Inc.
- Shigeo Fujita
- 430 - Radiation imagery chemistry: process, composition, or product thereof
Information Patent Grant
Polymethine compound and near-infrared absorbing material comprisin...
- Patent number 6,716,993
- Issue date Apr 6, 2004
- Yamamoto Chemicals, Inc.
- Nobuaki Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Polymethine compounds, method of producing same, and use thereof
- Patent number 6,342,335
- Issue date Jan 29, 2002
- Yamamoto Chemicals, Inc.
- Shigeo Fujita
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polymethine compounds, method of producing same, and use thereof
- Patent number 6,261,737
- Issue date Jul 17, 2001
- Yamamoto Chemicals, Inc.
- Shigeo Fujita
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of producing 3-dibutylamino 6-methyl-7-anilinofluoran
- Patent number 5,110,952
- Issue date May 5, 1992
- Yamamoto Chemicals, Inc.
- Hiroaki Harada
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Certain bis(benzoyl)pyridine compounds
- Patent number 4,523,018
- Issue date Jun 11, 1985
- Yamamoto Kagaku Gosei Co., Ltd.
- Yojiro Kumagae
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
POLYMETHINE COMPOUND AND NEAR-INFRARED ABSORBING MATERIAL COMPRISIN...
- Publication number 20030232999
- Publication date Dec 18, 2003
- Nobuaki Sasaki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Polymethine compound, a process for its production, and use of the...
- Publication number 20020051939
- Publication date May 2, 2002
- Nobuaki Sasaki
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...