Hiro Fujita

Follow

Person

Tokorozawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Matrix driving method for electro-optical display device
- Patent number 4,465,999
- Issue date Aug 14, 1984
- Citizen Watch Company Limited
- Akira Tsuzuki
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multi-layer display device with nonactive display element groups
- Patent number 4,443,062
- Issue date Apr 17, 1984
- Citizen Watch Company Limited
- Seigo Togashi
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Unit time producing system
- Patent number 4,264,967
- Issue date Apr 28, 1981
- Citizen Watch Co., Ltd.
- Hiro Fujita
- G04 - HOROLOGY
Information Patent Grant
Frequency division system
- Patent number 4,244,043
- Issue date Jan 6, 1981
- Citizen Watch Co., Ltd.
- Hiro Fujita
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electronic timepiece oscillator circuit
- Patent number 4,241,435
- Issue date Dec 23, 1980
- Citizen Watch Co., Ltd.
- Hiro Fujita
- H03 - BASIC ELECTRONIC CIRCUITRY