Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
TY

Tomoyuki Yamada

SOSocionext: 9 patents #18 of 541Top 4%
NTNTT: 8 patents #658 of 4,871Top 15%
HEHitachi Kokusai Electric: 6 patents #150 of 843Top 20%
PAPanasonic: 4 patents #6,180 of 21,108Top 30%
KEKokusai Electric: 4 patents #142 of 583Top 25%
SESeiko Epson: 3 patents #3,864 of 7,774Top 50%
FLFujitsu Semiconductor Limited: 3 patents #229 of 1,301Top 20%
SCSanyo Electric Co.: 3 patents #1,910 of 6,347Top 35%
IBM: 3 patents #26,272 of 70,183Top 40%
BIBando Chemical Industries: 2 patents #120 of 303Top 40%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
KSKyocera Circuit Solutions: 2 patents #2 of 12Top 20%
NENtt Electronics: 2 patents #99 of 358Top 30%
FIFujifilm Business Innovation: 2 patents #2,833 of 5,238Top 55%
SCShin-Etsu Chemical Co.: 1 patents #1,340 of 2,176Top 65%
PSPrime Planet Energy & Solutions: 1 patents #94 of 228Top 45%
YEYokogawa Electric: 1 patents #658 of 1,441Top 50%
YCYokowo Co.: 1 patents #88 of 176Top 50%
OCOki Electric Industry Co.: 1 patents #1,459 of 2,807Top 55%
KRKabushikikaisha Raifu: 1 patents #4 of 8Top 50%
Ricoh Company: 1 patents #6,936 of 9,818Top 75%
Yokohama, NY: #16 of 63 inventorsTop 30%
Overall (All Time): #39,716 of 4,157,543Top 1%
59 Patents All Time

Issued Patents All Time

Showing 51–59 of 59 patents

Patent #TitleCo-InventorsDate
7340701 Layout verification method and device 2008-03-04
6686644 Semiconductor device provided with fuse and method of disconnecting fuse Tsutomu Tatematsu, Kengi Togashi, Masayuki Nakada, Toyoji Sawada, Kazuo Sukegawa +1 more 2004-02-03
6618569 Image forming apparatus capable of forming two identical images on an intermediate transfer member Seiji SHIRAKI 2003-09-09
5973797 Image reading apparatus Katsunari TANAKA, Daisuke KONO, Hiroshi Hayashi, Kazuhiko Minowa, Ken Kajikawa 1999-10-26
5332558 Rare earth oxide powder and method for the preparation thereof Masami Kaneyoshi, Norifumi Yoshida 1994-07-26
5252548 Method of forming an oxide superconductor/semiconductor junction Hitoshi Abe 1993-10-12
5230081 Method and apparatus for locating which zone and sector of a mobile communication system a mobile station is in Seizo Onoe, Narumi Umeda, Takanori Utano 1993-07-20
5146214 Paging signal control system with reduced power consumption in a mobile communication system Seizo Onoe 1992-09-08
5087817 Infrared ray moisture meter Ryuji Chiba, Hitoshi Hara, Kenji Isozaki 1992-02-11