Sadao Chigira

Follow

Person

Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for reading of invisible marking
- Patent number 5,686,725
- Issue date Nov 11, 1997
- Kansai Paint Co., Ltd.
- Tsutomu Maruyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for formation of invisible marking and method for reading of...
- Patent number 5,547,501
- Issue date Aug 20, 1996
- Kansai Paint Co., Ltd.
- Tsutomu Maruyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image-transmitting fiber
- Patent number 4,896,941
- Issue date Jan 30, 1990
- Doryokuro Kakunenryo Kaihatsu Jigyodan
- Shotaro Hayashi
- G02 - OPTICS
Information Patent Grant
Heat and radiation resistant optical fiber
- Patent number 4,770,493
- Issue date Sep 13, 1988
- Doroyokuro Kakunenryo Kaihatsu Jigyodan
- Kuniaki Ara
- G02 - OPTICS
Information Patent Grant
Very-low-temperature fiberscope
- Patent number 4,707,075
- Issue date Nov 17, 1987
- Kabushiki Kaisha Toshiba
- Eiji Fukushima
- G02 - OPTICS