HY

Hiroyuki Yokoyama

TU Tohoku University: 20 patents #8 of 1,680Top 1%
SO Sony: 20 patents #2,042 of 25,231Top 9%
NE Nec: 8 patents #1,742 of 14,502Top 15%
SA Sanden: 6 patents #65 of 631Top 15%
RO Roland: 5 patents #42 of 292Top 15%
KD Kddi: 4 patents #79 of 396Top 20%
SE Seiko Epson: 3 patents #3,864 of 7,774Top 50%
MM Murata Machinery: 2 patents #128 of 397Top 35%
JA Japan Science And Technology Agency: 1 patents #756 of 2,171Top 35%
TO Toyota: 1 patents #15,335 of 26,838Top 60%
JS Jfe Steel: 1 patents #825 of 1,401Top 60%
SS Suwa Seikosha: 1 patents #103 of 220Top 50%
KI Kiddi: 1 patents #2 of 16Top 15%
KC Kokusai Denshin Denwa Co.: 1 patents #219 of 382Top 60%
TC Tohoku Techno Arch Co.: 1 patents #52 of 193Top 30%
YA Yazaki: 1 patents #2,077 of 3,427Top 65%
Overall (All Time): #43,808 of 4,157,543Top 2%
56
Patents All Time

Issued Patents All Time

Showing 51–56 of 56 patents

Patent #TitleCo-InventorsDate
6124966 Optical functional amplifying method and optical functional amplifying device 2000-09-26
6031851 Mode-locked semiconductor laser and method of driving the same Takanori Shimizu, Masayuki Yamaguchi 2000-02-29
5586138 Multiple-cavity semiconductor laser capable of generating ultrashort light pulse train with ultrahigh repetition rate 1996-12-17
5336058 Scroll-type compressor with variable displacement mechanism 1994-08-09
4976930 Method and apparatus for inducing photochemical reaction Shunji Kishida, Yukio Morishige, Kunihiko Washio 1990-12-11
4502790 Electronic timepiece 1985-03-05