Masato Yoshino

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Suwa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Multifunction electronic analog timepiece
- Patent number RE38197
- Issue date Jul 22, 2003
- Seiko Epson Corporation
- Kenji Sakamoto
- 368 - Horology: time measuring systems or devices
Information Patent Grant
Multifunction electronic analog timepiece
- Patent number 5,289,452
- Issue date Feb 22, 1994
- Seiko Epson Corporation
- Kenji Sakamoto
- G04 - HOROLOGY
Information Patent Grant
Multifunction electronic analog timepiece
- Patent number 5,113,381
- Issue date May 12, 1992
- Seiko Epson Corporation
- Kenji Sakamoto
- G04 - HOROLOGY