Yuichi Yamada

Ngk Spark Plug Co.: 44 patents #9 of 1,594Top 1%

Nichia: 22 patents #56 of 1,531Top 4%

SO Sony: 20 patents #2,042 of 25,231Top 9%

Canon: 18 patents #3,676 of 19,416Top 20%

Sumitomo Electric Industries: 8 patents #3,473 of 21,551Top 20%

KT Kabushiki Kaisha Toshiba: 4 patents #6,684 of 21,451Top 35%

AC Aisin Takaoka Co.: 2 patents #24 of 172Top 15%

NC Niterra Co.: 2 patents #19 of 125Top 20%

Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%

JI Japan Atomic Energy Research Institute: 2 patents #81 of 609Top 15%

OC Olympus Optical Co.: 1 patents #1,517 of 2,334Top 65%

RK Riso Kagaku: 1 patents #321 of 551Top 60%

SU Sumida: 1 patents #72 of 118Top 65%

FA Fanuc: 1 patents #1,202 of 1,735Top 70%

HI Hitachi Video Engineering, Incorporated: 1 patents #69 of 181Top 40%

KS Kdd Submarine Cable Systems: 1 patents #25 of 42Top 60%

KD Kddi: 1 patents #215 of 396Top 55%

Mitsubishi Electric: 1 patents #15,491 of 25,717Top 65%

HI Hitachi: 1 patents #17,742 of 28,497Top 65%

OL Olympus: 1 patents #2,078 of 3,097Top 70%

Overall (All Time): #8,664 of 4,157,543Top 1%

128

Patents All Time

Issued Patents All Time

Showing 126–128 of 128 patents

Patent #	Title	Co-Inventors	Date
4962423	Mark detecting method and apparatus	Naoki Ayata, Hiroki Suzukawa, Hideki Nogawa	1990-10-09
4933715	Method of detecting position of a mark	Naoki Ayata, Hiroki Suzukawa, Hideki Nogawa	1990-06-12
4883922	Composite superconductor and method of the production thereof	Minoru Yokota, Masayuki Nagata, Shigeo Saito	1989-11-28