Masao Takeuchi

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Azumino-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Timepiece mainspring, timepiece drive device, timepiece movement, t...
- Patent number 10,317,842
- Issue date Jun 11, 2019
- Seiko Epson Corporation
- Keisuke Nakata
- G04 - HOROLOGY
Information Patent Grant
Method for producing timepiece spring, device for producing timepie...
- Patent number 9,823,624
- Issue date Nov 21, 2017
- Seiko Epson Corporation
- Kazuhiro Tsuchiya
- G04 - HOROLOGY
Information Patent Grant
Timepiece wheel train and timepiece
- Patent number 8,167,481
- Issue date May 1, 2012
- Seiko Epson Corporation
- Masao Takeuchi
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents

Information Patent Application
TIMEPIECE MAINSPRING, TIMEPIECE DRIVE DEVICE, TIMEPIECE MOVEMENT, T...
- Publication number 20170308037
- Publication date Oct 26, 2017
- SEIKO EPSON CORPORATION
- Keisuke NAKATA
- G04 - HOROLOGY
Information Patent Application
METHOD FOR PRODUCING TIMEPIECE SPRING, DEVICE FOR PRODUCING TIMEPIE...
- Publication number 20140064043
- Publication date Mar 6, 2014
- SEIKO EPSON CORPORATION
- Kazuhiro TSUCHIYA
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Timepiece Wheel Train and Timepiece
- Publication number 20100254230
- Publication date Oct 7, 2010
- SEIKO EPSON CORPORATION
- Masao Takeuchi
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...