Masashi HIRAOKA

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Chiba-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Timepiece bearing, movement, and portable timepiece
- Patent number 8,702,301
- Issue date Apr 22, 2014
- Seiko Instruments Inc.
- Masashi Hiraoka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Escapement governor, mechanical watch, pallet fork (incomplete) man...
- Patent number 8,591,101
- Issue date Nov 26, 2013
- Seiko Instruments
- Masashi Hiraoka
- G04 - HOROLOGY

Patents Applicationslast 30 patents

Information Patent Application
Timepiece bearing, movement, and portable timepiece
- Publication number 20110080810
- Publication date Apr 7, 2011
- Masashi Hiraoka
- G04 - HOROLOGY
Information Patent Application
ESCAPEMENT GOVERNOR, MECHANICAL WATCH, PALLET FORK (INCOMPLETE) MAN...
- Publication number 20100208555
- Publication date Aug 19, 2010
- Masashi HIRAOKA
- G04 - HOROLOGY