Akira Tsuzuki

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Television receiver having a liquid crystal display device
- Patent number 4,663,670
- Issue date May 5, 1987
- Citizen Watch Co., Ltd.
- Katsu Ito
- G02 - OPTICS
Information Patent Grant
Liquid crystal display television receiver
- Patent number 4,652,932
- Issue date Mar 24, 1987
- Citizen Watch Co., Ltd.
- Akira Miyajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Liquid crystal television receiver
- Patent number 4,646,158
- Issue date Feb 24, 1987
- Citizen Watch Co., Ltd.
- Hideshi Ohno
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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
Combination matrix array display and memory system
- Patent number 4,430,648
- Issue date Feb 7, 1984
- Citizen Watch Company Limited
- Seigo Togashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Frequency divider
- Patent number 4,389,728
- Issue date Jun 21, 1983
- Citizen Watch Co., Ltd.
- Akira Tsuzuki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Matrix drive system for liquid crystal display
- Patent number 4,356,483
- Issue date Oct 26, 1982
- Citizen Watch Company, Limited
- Hiroo Fujita
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Anesthetic gas control apparatus
- Patent number 4,345,612
- Issue date Aug 24, 1982
- Citizen Watch Company Limited
- Tuyoshi Koni
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Liquid crystal display device with write-in capability
- Patent number 4,345,248
- Issue date Aug 17, 1982
- Citizen Watch Company Limited
- Seigo Togashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Matrix driving method for electro-optical display device
- Patent number 4,300,137
- Issue date Nov 10, 1981
- Citizen Watch Company Limited
- Hiroo Fujita
- 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
Information Patent Grant
Timepiece
- Patent number 4,232,510
- Issue date Nov 11, 1980
- Citizen Watch Co., Ltd.
- Munetaka Tamaru
- G04 - HOROLOGY
Information Patent Grant
Method of driving liquid crystal matrix display device to obtain ma...
- Patent number 4,100,540
- Issue date Jul 11, 1978
- Citizen Watch Co., Ltd.
- Hiroo Fujita
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Akira Tsuzuki

Person

Patents Grantslast 30 patents

Television receiver having a liquid crystal display device

Liquid crystal display television receiver

Liquid crystal television receiver

Matrix driving method for electro-optical display device

Multi-layer display device with nonactive display element groups

Combination matrix array display and memory system

Frequency divider

Matrix drive system for liquid crystal display

Anesthetic gas control apparatus

Liquid crystal display device with write-in capability

Matrix driving method for electro-optical display device

Unit time producing system

Frequency division system

Electronic timepiece oscillator circuit

Timepiece

Method of driving liquid crystal matrix display device to obtain ma...