Hidetoshi Watanabe

SO Sony: 30 patents #1,169 of 25,231Top 5%

Brother Kogyo: 28 patents #275 of 2,767Top 10%

IN Innolux: 10 patents #135 of 1,038Top 15%

Fujitsu Limited: 9 patents #3,538 of 24,456Top 15%

KE Keihin: 6 patents #25 of 596Top 5%

RK Riso Kagaku: 4 patents #130 of 551Top 25%

FU Fujifilm: 3 patents #1,989 of 4,519Top 45%

TL Tpo Hong Kong Holding Limited: 3 patents #3 of 61Top 5%

BI Brother Industries: 3 patents #115 of 325Top 40%

KT Kabushiki Kaisha Toshiba: 2 patents #9,982 of 21,451Top 50%

KA Kao: 2 patents #1,388 of 3,221Top 45%

Philips: 2 patents #2,426 of 7,731Top 35%

Kyocera: 2 patents #1,365 of 3,732Top 40%

CI Chimei Innolux: 1 patents #232 of 654Top 40%

FC Fuji Photo Co.: 1 patents #1 of 51Top 2%

SC Sumitomo Metal Mining Co.: 1 patents #385 of 736Top 55%

The Yokohama Rubber Co.: 1 patents #666 of 1,136Top 60%

BH Bayer Healthcare: 1 patents #4,623 of 8,007Top 60%

EK Eiken Kagaku: 1 patents #35 of 92Top 40%

Overall (All Time): #12,512 of 4,157,543Top 1%

Issued Patents All Time

Showing 101–107 of 107 patents

Patent #	Title	Co-Inventors	Date
5121279	Magnetic disk cartridge write/protect assembly having impact avoiding portions	Tetsuo Saeki	1992-06-09
5116210	Optical-disk manufacturing apparatus	Hirotsugu Suzuki, Masanobu Yamamoto	1992-05-26
5112205	Optical-disk manufacturing apparatus	Hirotsugu Suzuki, Masanobu Yamamoto	1992-05-12
5087184	Optical-disk manufacturing device	Hirotsugu Suzuki, Masanobu Yamamoto	1992-02-11
5071673	Method for producing optical disc	Yoshikazu Anezaki, Koji Sasaki	1991-12-10
D290188	Covering for magnetic tape cassette	—	1987-06-09
4651876	Cassette protective cover	Yoshimi Tanuma	1987-03-24