Mitsuru Ishii

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electronic timepiece having transmission wheel rotational position...
- Patent number 6,582,118
- Issue date Jun 24, 2003
- Seiko Instruments Inc.
- Kenichi Nakajima
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece
- Patent number 6,584,040
- Issue date Jun 24, 2003
- Seiko Instruments Inc.
- Kenichi Nakajima
- G04 - HOROLOGY
Information Patent Grant
Transmission wheel, method for manufacturing transmission wheel and...
- Patent number 6,422,348
- Issue date Jul 23, 2002
- Seiko Instruments Inc.
- Koichiro Jujo
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece
- Patent number 6,088,302
- Issue date Jul 11, 2000
- Seiko Instruments Inc.
- Kenichi Nakajima
- G04 - HOROLOGY
Information Patent Grant
Calendar electronic timepiece
- Patent number 6,088,300
- Issue date Jul 11, 2000
- Seiko Instruments Inc.
- Kenichi Nakajima
- G04 - HOROLOGY
Information Patent Grant
Calendar watch
- Patent number 5,903,519
- Issue date May 11, 1999
- Seiko Instruments Inc.
- Masaaki Takahashi
- G04 - HOROLOGY
Information Patent Grant
Automatic watch
- Patent number 5,867,454
- Issue date Feb 2, 1999
- Seiko Instruments Inc.
- Masaaki Takahashi
- G04 - HOROLOGY