Takehiro Ishikawa

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Electronic metronome equipped with subtraction timer
- Patent number 5,027,686
- Issue date Jul 2, 1991
- Seiko Instruments Inc.
- Takehiro Ishikawa
- G04 - HOROLOGY
Information Patent Grant
Integrated circuit for converting a drive signal of three or more v...
- Patent number 4,638,247
- Issue date Jan 20, 1987
- Kabushiki Kaisha Daini Seikosha
- Takehiro Ishikawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic clinical thermometer
- Patent number 4,551,031
- Issue date Nov 5, 1985
- Kabushiki Kaisha Daini Seikosha
- Takehiro Ishikawa
- G01 - MEASURING TESTING
Information Patent Grant
Electronic timepiece with dot matrix display
- Patent number 4,396,295
- Issue date Aug 2, 1983
- Kabushiki Kaisha Daini Seikosha
- Takehiro Ishikawa
- G04 - HOROLOGY
Information Patent Grant
Digital electronic timepiece
- Patent number 4,123,896
- Issue date Nov 7, 1978
- Kabushiki Kaisha Daini Seikosha
- Kazuhiro Asano
- G04 - HOROLOGY
Information Patent Grant
Electronic timepiece
- Patent number 4,104,864
- Issue date Aug 8, 1978
- Kabushiki Kaisha Daini Seikosha
- Takehiro Ishikawa
- G04 - HOROLOGY