YK

Yasushi Kawashima

DE Denso: 8 patents #1,668 of 11,792Top 15%
OM Omron: 6 patents #499 of 3,089Top 20%
Mitsubishi Electric: 4 patents #7,099 of 25,717Top 30%
TS Tokai University Educational System: 2 patents #13 of 138Top 10%
TI Takeda Chemical Industries: 1 patents #745 of 1,420Top 55%
Tdk: 1 patents #2,493 of 3,796Top 70%
Overall (All Time): #193,609 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11823839 Electronic component Kosuke Takano, Toshihiko Kaneko, Nobuto Morigasaki, Momoyo Sasaki 2023-11-21
11313907 Arc discharge detection device Katsuya Marumo, Hajime Umeki, Junji OBATA, Keisuke Yano 2022-04-26
10756771 Wireless switch Katsuya Marumo, Hajime Umeki, Junji OBATA, Keisuke Yano 2020-08-25
10547396 State display apparatus, state display system, and radio transmission apparatus Soji Ohmae, Hajime Umeki, Junji OBATA, Hiroshi Okabe 2020-01-28
10453634 Power generation apparatus and wireless switch Katsuya Marumo, Ken Tamura, Kazuyuki Tsukimori, Hiroshi Shiino, Hajime Umeki +2 more 2019-10-22
10447528 Radio communication system and non-transitory computer-readable storage medium Soji Ohmae, Ryota Yamada, Hajime Umeki, Yuki Inoue 2019-10-15
10304639 Wireless switch Katsuya Marumo, Ken Tamura, Kazuyuki Tsukimori, Hiroshi Shiino, Hajime Umeki +2 more 2019-05-28
9422911 Gasket for attaching spark plug and ignition system 2016-08-23
8760045 Spark plug for internal combustion engines and method for manufacturing the spark plug Ken Hanashi 2014-06-24
7907505 Code disk with a plurality of tracks having different patterns Masahiko Sakamoto, Katsutoshi Kamakura, Masahiro Otani, Isamu Higashioka, Masaru Imaizumi +2 more 2011-03-15
7736472 Method and device for generating ultra-high pressure 2010-06-15
7652413 Spark plug for internal combustion engine 2010-01-26
7612331 Code disk with a plurality of tracks having different patterns Masahiko Sakamoto, Koichi Sugimoto, Katsutoshi Kamakura, Masahiro Otani, Isamu Higashioka +2 more 2009-11-03
7332727 Method and device for generating ultra-high pressure 2008-02-19
7234429 Spark plug with increased durability Nobuo Abe, Tsunetoshi Goto 2007-06-26
7193962 Code disk with a plurality of tracks having different patterns Masahiko Sakamoto, Koichi Sugimoto, Katsutoshi Kamakura, Masahiro Otani, Isamu Higashioka +2 more 2007-03-20
6975062 Spark plug with powder filling Hirofumi Suzuki 2005-12-13
6215234 Spark plug having specified spark gap dimensional relationships Nobuo Abe 2001-04-10
6130498 Spark plug with specific measured parameters Toshikazu Shimizu 2000-10-10
6083604 Bonded assembly, method of jointing for preparation thereof and rivet Kosuke Haraga, Naoki Yagi, Yoshinobu Nakashima, Yuzi Ganryu, Tsutomu Sasaki +9 more 2000-07-04
5982080 Spark plug and its manufacturing method Masamichi Shibata 1999-11-09
5118817 Process for production of 2-phosphated esters of ascorbic acid Kokichi Yoshida 1992-06-02