Hiroki NAKAGAWA

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Yamanashi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polishing liquid
- Patent number 12,203,007
- Issue date Jan 21, 2025
- Hoya Corporation
- Hiroki Nakagawa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Method for polishing glass substrate, method for manufacturing glas...
- Patent number 11,098,224
- Issue date Aug 24, 2021
- Hoya Corporation
- Hiroki Nakagawa
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Manufacturing method of glass substrate for magnetic disk, magnetic...
- Patent number 8,974,561
- Issue date Mar 10, 2015
- Hoya Corporation
- Masanori Tamaki
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
POLISHING LIQUID, CARRIER PARTICLE, METHOD FOR REDUCING CERIUM OXID...
- Publication number 20210348030
- Publication date Nov 11, 2021
- Hoya Corporation
- Hiroki NAKAGAWA
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
METHOD FOR POLISHING GLASS SUBSTRATE, METHOD FOR MANUFACTURING GLAS...
- Publication number 20200032104
- Publication date Jan 30, 2020
- HOYA CORPORATION
- Hiroki NAKAGAWA
- B24 - GRINDING POLISHING
Information Patent Application
MANUFACTURING METHOD OF GLASS SUBSTRATE FOR MAGNETIC DISK, MAGNETIC...
- Publication number 20150158139
- Publication date Jun 11, 2015
- Hoya Corporation
- Masanori TAMAKI
- G11 - INFORMATION STORAGE
Information Patent Application
MANUFACTURING METHOD OF GLASS SUBSTRATE FOR MAGNETIC DISK, MAGNETIC...
- Publication number 20130083425
- Publication date Apr 4, 2013
- HOYA CORPORATION
- Masanori TAMAKI
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...