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

Eiichi Yamada

Sony: 20 patents #2,042 of 25,231Top 9%
INInpex: 13 patents #4 of 67Top 6%
CCCosmo Oil Co.: 13 patents #4 of 229Top 2%
JNJapan Oil, Gas And Metals National: 13 patents #4 of 106Top 4%
JCJapan Petroleum Exploration Co.: 13 patents #4 of 93Top 5%
JEJx Nippon Oil & Energy: 12 patents #14 of 416Top 4%
NCNippon Steel Engineering Co.: 10 patents #2 of 107Top 2%
NTNTT: 7 patents #771 of 4,871Top 20%
NENS Sumikin Engineering: 4 patents #6 of 113Top 6%
Hitachi: 3 patents #10,712 of 28,497Top 40%
NCNippon Oil & Fats Co.: 3 patents #69 of 409Top 20%
MOMolex: 2 patents #661 of 1,726Top 40%
FIFujimi Incorporated: 2 patents #88 of 216Top 45%
Toyota: 1 patents #15,335 of 26,838Top 60%
IRInstitute For Advanced Skin Research: 1 patents #5 of 13Top 40%
NONippon Oil: 1 patents #392 of 773Top 55%
RTRenesas Technology: 1 patents #1,991 of 3,337Top 60%
TCToyoda Gosei Co.: 1 patents #1,271 of 2,296Top 60%
Overall (All Time): #45,995 of 4,157,543Top 2%
55 Patents All Time

Issued Patents All Time

Showing 26–50 of 55 patents

Patent #TitleCo-InventorsDate
7850198 Knee protection apparatus for vehicle occupant Tatsuya Hayakawa, Hitoshi Kondo 2010-12-14
7711214 Semiconductor optical modulator Ken Tsuzuki, Nobuhiro Kikuchi 2010-05-04
7655057 Polishing composition and polishing method 2010-02-02
7574275 Recording apparatus, reproducing apparatus, and recording and/or reproducing apparatus 2009-08-11
7500271 Reproducing apparatus and information distribution system Teruyuki Shitara, Ichiro Mayama 2009-03-03
7415314 Recording apparatus, reproducing apparatus, and recording and/or reproducing apparatus 2008-08-19
7233200 AGC circuit, AGC circuit gain control method, and program for the AGC circuit gain control method 2007-06-19
7226075 Knee-protecting airbag device Atsushi Nagata, Kazuhiro Nakayama, Tatsuya Hayakawa, Hitoshi Kondo 2007-06-05
7113702 Wavelength division multiplexing optical transmission system and transmission method Yuzo Yoshikuni, Hiroaki Sanjoh 2006-09-26
7103430 Recording apparatus, reproducing apparatus, and recording and/or reproducing apparatus 2006-09-05
7092911 Reproducing apparatus and reproducing method Teppei Yokota, Nobuyuki Kihara, Takumi Okaue 2006-08-15
7024122 Ultrahigh-speed clock extraction circuit Kentaro Uchiyama, Hidehiko Takara, Etsu Hashimoto, Toshio Morioka 2006-04-04
6925341 Recording apparatus, reproducing apparatus, and recording and/or reproducing apparatus 2005-08-02
6868494 Reproducing apparatus and information distribution system Teruyuki Shitara, Ichiro Mayama 2005-03-15
6807024 Reproducing apparatus and reproducing method Teppei Yokota, Nobuyuki Kihara 2004-10-19
6806130 Process for manufacturing a semiconductor wafer, a semiconductor wafer, process for manufacturing a semiconductor integrated circuit device, and semiconductor integrated circuit device Hiroto Kawagoe, Tatsumi Shirasu, Shogo Kiyota, Norio Suzuki, Yuji Sugino +4 more 2004-10-19
6630375 Process for manufacturing a semiconductor wafer, a semiconductor wafer, process for manufacturing a semiconductor integrated circuit device, and semiconductor integrated circuit device Hiroto Kawagoe, Tatsumi Shirasu, Shogo Kiyota, Norio Suzuki, Yuji Sugino +4 more 2003-10-07
6625713 Memory controller and method for managing a logical/physical address control table Kenichi Iida, Noriyuki Koga, Mari Sugiura, Shuji Obayashi 2003-09-23
6591328 Non-volatile memory storing address control table data formed of logical addresses and physical addresses Kenichi Iida, Noriyuki Koga, Mari Sugiura, Shuji Obayashi 2003-07-08
6434103 Recording medium, recording apparatus, recording method, editing apparatus and editing method Teruyuki Shitara, Teppei Yokota, Nobuyuki Kihara 2002-08-13
6411931 Character data transformer and transforming method 2002-06-25
6385690 Recording method, managing method, and recording apparatus Kenichi Iida, Shuji Ohbayashi 2002-05-07
6368905 Process for manufacturing a semiconductor wafer, a semiconductor wafer, process for manufacturing a semiconductor integrated circuit device, and semiconductor integrated circuit device Hiroto Kawagoe, Tatsumi Shirasu, Shogo Kiyota, Norio Suzuki, Yuji Sugino +4 more 2002-04-09
6311092 Recording apparatus, reproducing apparatus, and recording and/or reproducing apparatus 2001-10-30
6043114 Process for manufacturing a semiconductor wafer, a semiconductor wafer, process for manufacturing a semiconductor integrated circuit device, and semiconductor integrated circuit device Hiroto Kawagoe, Tatsumi Shirasu, Shogo Kiyota, Norio Suzuki, Yuji Sugino +4 more 2000-03-28