Yoshihisa Naoi

Follow

Person

Saitama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Inner diameter grinding wheel and grinding apparatus using the whee...
- Patent number 6,475,073
- Issue date Nov 5, 2002
- Naoi Seiki Co., Ltd.
- Yoshihisa Naoi
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
Inner diameter grinding wheel and grinding apparatus using the whee...
- Publication number 20010007812
- Publication date Jul 12, 2001
- Yoshihisa Naoi
- B24 - GRINDING POLISHING