Inventor

KITAHARA SEIKI

JP3 patents

Patents

3 patents

US5038259AAug 6, 1991

Illumination device

DAI ICHI SEIKO CO LTD18 citations81

US5144539ASep 1, 1992

Illumination device

DAI ICHI SEIKO CO LTD17 citations72

US5101331AMar 31, 1992

Illumination device

DAI ICHI SEIKO CO LTD7 citations72