YK

Yasuo Katoh

DE Denso: 6 patents #2,220 of 11,792Top 20%
UC Ube Machinery Corporation: 2 patents #14 of 59Top 25%
JR Japanese National Railways: 1 patents #19 of 102Top 20%
NO Nippon Oil: 1 patents #392 of 773Top 55%
Overall (All Time): #552,365 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11674477 Leak hole determination device of evaporated fuel processing device Keiichirou Ishihara, Tomohiro Itoh 2023-06-13
11493402 Pressure sensor for evaporated fuel leak detector Ryoyuu Kishi, Tomohiro Itoh 2022-11-08
11480492 Pressure sensor for evaporated fuel leak detector Ryoyuu Kishi, Tomohiro Itoh 2022-10-25
11435259 Pressure sensor for evaporated fuel leak detector Ryoyuu Kishi, Tomohiro Itoh 2022-09-06
11428601 Pressure sensor for evaporated fuel leak detector Ryoyuu Kishi, Tomohiro Itoh 2022-08-30
11428222 Vane pump Keiichirou Ishihara, Tomohiro Itoh 2022-08-30
8438892 Stem slide device Takeharu Yamamoto 2013-05-14
8122752 Discard conveying apparatus Takeharu Yamamoto 2012-02-28
4267085 Injection materials for railroad track beds Hideo Kakegawa, Shigeyuki Hayashi, Tadakazu Yamashita 1981-05-12