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Yoshiaki Hayashi
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Katano, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Composition for printing inks
Patent number
5,779,783
Issue date
Jul 14, 1998
Sumitomo Chemical Company, Limited
Hideki Senba
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Pigment compositions
Patent number
5,556,456
Issue date
Sep 17, 1996
Sumitomo Chemical Company, Ltd.
Hiroki Inoue
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Process for producing 4,4'-Diamino-1,1'-dianthraquinonyl pigments
Patent number
5,416,263
Issue date
May 16, 1995
Sumitomo Chemical Co., Ltd.
Iwao Sakaguchi
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Process for purification of crude 4,4'-diamino-1,1'-dianthraquinony...
Patent number
5,393,899
Issue date
Feb 28, 1995
Sumimoto Chemical Company, Limited
Hiroki Inoue
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for producing 4,4'-diamino-1,1,'-dianthraquinonyl pigments
Patent number
5,320,678
Issue date
Jun 14, 1994
Sumitomo Chemical Co. Ltd.
Hiroki Inoue
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Anthrapyridone compounds
Patent number
5,183,892
Issue date
Feb 2, 1993
Sumitomo Chemical Company, Limited
Toshio Nakamatsu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Cyan dye-donor element used in thermal transfer and thermal transfe...
Patent number
5,077,264
Issue date
Dec 31, 1991
Sumitomo Chemical Company, Ltd.
Yoshiaki Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Magenta dye-donor element used in thermal transfer and thermal tran...
Patent number
5,013,712
Issue date
May 7, 1991
Sumitomo Chemical Company, Ltd.
Yoshiaki Hayashi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Yellow dye-donor element used in thermal transfer and thermal trans...
Patent number
4,833,123
Issue date
May 23, 1989
Sumitomo Chemical Company Limited
Kiyoyasu Hashimoto
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Process for producing dioxazine violet pigment
Patent number
4,804,417
Issue date
Feb 14, 1989
Sumitomo Chemical Company, Limited
Taira Fujita
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Optical fiber for infrared transmission consisting essentially of h...
Patent number
4,678,275
Issue date
Jul 7, 1987
Matsushita Electric Industrial Co., Ltd.
Masaru Ikedo
C30 - CRYSTAL GROWTH
Information
Patent Grant
Process for producing dioxazine violet pigment
Patent number
4,481,358
Issue date
Nov 6, 1984
Sumitomo Chemical Company, Limited
Iwao Sakaguchi
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Process for producing dioxazine violet pigment
Patent number
4,317,908
Issue date
Mar 2, 1982
Sumitomo Chemical Company, Limited
Iwao Sakaguchi
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Solid state display device
Patent number
4,199,229
Issue date
Apr 22, 1980
Matsushita Electric Industrial Co., Ltd.
Akio Yamashita
G02 - OPTICS
Information
Patent Grant
Magnetic recording and reproducing apparatus of rotating head type
Patent number
4,126,888
Issue date
Nov 21, 1978
Matsushita Electric Industrial Co., Ltd.
Yoshiaki Hayashi
G11 - INFORMATION STORAGE
Information
Patent Grant
High speed feeding and rewinding mechanism in a magnetic tape recor...
Patent number
4,121,267
Issue date
Oct 17, 1978
Matsushita Electric Industrial Co., Ltd.
Yoshiaki Hayashi
G11 - INFORMATION STORAGE
Information
Patent Grant
Tape loading apparatus in a magnetic recording and reproducing appa...
Patent number
4,115,825
Issue date
Sep 19, 1978
Matsushita Electric Industrial Co., Ltd.
Yoshiaki Hayashi
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
OBJECT DETECTION SYSTEM AND INFRASTRUCTURE SENSOR
Publication number
20240329237
Publication date
Oct 3, 2024
Sumitomo Electric Industries, Ltd.
Yoshiaki HAYASHI
G01 - MEASURING TESTING
Information
Patent Application
Process for producing thermosetting resin varnish
Publication number
20030114574
Publication date
Jun 19, 2003
Sumitomo Chemical Company, Limited
Katsuhiro Furuta
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...