Osamu Kai

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Light adjustment device and light adjustment device manufacturing m...
- Patent number 12,174,476
- Issue date Dec 24, 2024
- Japan Display Inc.
- Shunpei Takeuchi
- G02 - OPTICS
Information Patent Grant
Public telephone system
- Patent number 5,463,679
- Issue date Oct 31, 1995
- Tamura Electrics Works, Ltd.
- Osamu Kai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Power source control apparatus for telephone set
- Patent number 5,381,472
- Issue date Jan 10, 1995
- Tamura Electric Works, Ltd.
- Kazuhide Kobayashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Coin diameter discriminating device
- Patent number 5,033,603
- Issue date Jul 23, 1991
- Tamura Electric Works, Ltd.
- Osamu Kai
- G07 - CHECKING-DEVICES
Information Patent Grant
Coin discrimination apparatus
- Patent number 4,995,497
- Issue date Feb 26, 1991
- Tamura Electric Works, Ltd.
- Osamu Kai
- G07 - CHECKING-DEVICES
Information Patent Grant
Method of correcting coin data and apparatus for inspecting coins
- Patent number 4,951,799
- Issue date Aug 28, 1990
- Tamura Electric Works, Ltd.
- Osamu Kai
- G07 - CHECKING-DEVICES
Information Patent Grant
Public telephone set
- Patent number 4,768,217
- Issue date Aug 30, 1988
- Tamura Electric Works, Ltd.
- Hiroyuki Asano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Coin discrimination apparatus
- Patent number 4,660,705
- Issue date Apr 28, 1987
- Tamura Electric Works, Ltd.
- Osamu Kai
- G07 - CHECKING-DEVICES
Information Patent Grant
Alarm information transmission system for coin telephone
- Patent number 4,644,109
- Issue date Feb 17, 1987
- Tamura Electric Works, Ltd.
- Yoshiaki Takeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for controlling task process and device thereof
- Patent number 4,612,418
- Issue date Sep 16, 1986
- Tamura Electric Works, Ltd.
- Yoshiaki Takeda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
LIGHT ADJUSTMENT DEVICE AND LIGHT ADJUSTMENT DEVICE MANUFACTURING M...
- Publication number 20250068007
- Publication date Feb 27, 2025
- Japan Display Inc.
- Shunpei TAKEUCHI
- G02 - OPTICS
Information Patent Application
LIGHT ADJUSTMENT DEVICE AND LIGHT ADJUSTMENT DEVICE MANUFACTURING M...
- Publication number 20240012276
- Publication date Jan 11, 2024
- Japan Display Inc.
- Shunpei TAKEUCHI
- G02 - OPTICS

Person

Patents Grantslast 30 patents

Light adjustment device and light adjustment device manufacturing m...

Public telephone system

Power source control apparatus for telephone set

Coin diameter discriminating device

Coin discrimination apparatus

Method of correcting coin data and apparatus for inspecting coins

Public telephone set

Coin discrimination apparatus

Alarm information transmission system for coin telephone

Method for controlling task process and device thereof

Patents Applicationslast 30 patents

LIGHT ADJUSTMENT DEVICE AND LIGHT ADJUSTMENT DEVICE MANUFACTURING M...

LIGHT ADJUSTMENT DEVICE AND LIGHT ADJUSTMENT DEVICE MANUFACTURING M...