Toru IWATA

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Aichi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polishing composition for magnetic disk substrate
- Patent number 10,844,243
- Issue date Nov 24, 2020
- YAMAGUCHI SEIKEN KOGYO CO., LTD.
- Toru Iwata
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Polishing composition and method for polishing magnetic disk substrate
- Patent number 10,822,525
- Issue date Nov 3, 2020
- YAMAGUCHI SEIKEN KOGYO CO., LTD.
- Toru Iwata
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Polishing composition for magnetic disk substrate
- Patent number 10,696,870
- Issue date Jun 30, 2020
- YAMAGUCHI SEIKEN KOGYO CO., LTD.
- Toru Iwata
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Polishing composition for magnetic disk substrate
- Patent number 10,577,445
- Issue date Mar 3, 2020
- YAMAGUCHI SEIKEN KOGYO CO., LTD.
- Toru Iwata
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polishing composition and method for polishing magnetic disk substrate
- Patent number 9,862,863
- Issue date Jan 9, 2018
- YAMAGUCHI SEIKEN KOGYO CO., LTD.
- Toru Iwata
- B24 - GRINDING POLISHING
Information Patent Grant
Polishing composition and method for polishing magnetic disk substrate
- Patent number 9,856,401
- Issue date Jan 2, 2018
- YAMAGUCHI SEIKEN KOGYO CO., LTD.
- Toru Iwata
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
POLISHING COMPOSITION FOR MAGNETIC DISK SUBSTRATE
- Publication number 20190119423
- Publication date Apr 25, 2019
- YAMAGUCHI SEIKEN KOGYO CO., LTD.
- Toru IWATA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLISHING COMPOSITION FOR MAGNETIC DISK SUBSTRATE
- Publication number 20190010358
- Publication date Jan 10, 2019
- YAMAGUCHI SEIKEN KOGYO CO., LTD.
- Toru IWATA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
POLISHING COMPOSITION FOR MAGNETIC DISK SUBSTRATE
- Publication number 20180273803
- Publication date Sep 27, 2018
- YAMAGUCHI SEIKEN KOGYO CO., LTD.
- Toru IWATA
- B24 - GRINDING POLISHING
Information Patent Application
POLISHING COMPOSITION AND METHOD FOR POLISHING MAGNETIC DISK SUBSTRATE
- Publication number 20180215953
- Publication date Aug 2, 2018
- YAMAGUCHI SEIKEN KOGYO CO., LTD.
- Toru IWATA
- B24 - GRINDING POLISHING
Information Patent Application
POLISHING COMPOSITION AND METHOD FOR POLISHING MAGNETIC DISK SUBSTRATE
- Publication number 20170015867
- Publication date Jan 19, 2017
- YAMAGUCHI SEIKEN KOGYO CO., LTD.
- Toru IWATA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
POLISHING COMPOSITION AND METHOD FOR POLISHING MAGNETIC DISK SUBSTRATE
- Publication number 20170015868
- Publication date Jan 19, 2017
- YAMAGUCHI SEIKEN KOGYO CO., LTD.
- Toru IWATA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Person

Patents Grantslast 30 patents

Polishing composition for magnetic disk substrate

Polishing composition and method for polishing magnetic disk substrate

Polishing composition for magnetic disk substrate

Polishing composition for magnetic disk substrate

Polishing composition and method for polishing magnetic disk substrate

Polishing composition and method for polishing magnetic disk substrate

Patents Applicationslast 30 patents

POLISHING COMPOSITION FOR MAGNETIC DISK SUBSTRATE

POLISHING COMPOSITION FOR MAGNETIC DISK SUBSTRATE

POLISHING COMPOSITION FOR MAGNETIC DISK SUBSTRATE

POLISHING COMPOSITION AND METHOD FOR POLISHING MAGNETIC DISK SUBSTRATE

POLISHING COMPOSITION AND METHOD FOR POLISHING MAGNETIC DISK SUBSTRATE

POLISHING COMPOSITION AND METHOD FOR POLISHING MAGNETIC DISK SUBSTRATE