YK

Yohei Katayama

NT NTT: 21 patents #112 of 4,871Top 3%
HS Hitachi Automotive Systems: 7 patents #226 of 1,636Top 15%
HI Hitachi: 3 patents #10,712 of 28,497Top 40%
HA Hitachi Astemo: 3 patents #267 of 1,276Top 25%
KS Kabushiki Kaisha Hitachi Seisakusho: 1 patents #13 of 55Top 25%
TO Tokico: 1 patents #164 of 359Top 50%
📍 Hitachinaka, JP: #108 of 2,447 inventorsTop 5%
Overall (All Time): #91,246 of 4,157,543Top 3%
36
Patents All Time

Issued Patents All Time

Showing 26–36 of 36 patents

Patent #TitleCo-InventorsDate
9856939 Shock absorber Hiroyuki Matsumoto, Shigeo Katayama, Umi TANABE, Yusei Kimura, Yoshie Midorikawa +2 more 2018-01-02
9309948 Shock absorber Hiroki Ohara, Sadatomo MATSUMURA 2016-04-12
8965632 Suspension control apparatus Toru UCHINO, Ryusuke Hirao, Hiroyuki Yabe, Hiroki Ohara 2015-02-24
8800729 Damping force control type shock absorber Hiroyuki Yabe, Takashi Nezu 2014-08-12
8798859 Suspension control apparatus Toru UCHINO, Ryusuke Hirao, Hiroyuki Yabe, Hiroki Ohara 2014-08-05
8794400 Damping force adjustable shock absorber Takao Nakadate, Takashi Nezu, Shigeo Katayama, Hiroyuki Yabe 2014-08-05
8651252 Shock absorber Takao Nakadate, Kenji Noda, Mikio Yamashita, Fumiyuki Yamaoka 2014-02-18
8544619 Fluid pressure shock absorber Hiroyuki Yamaguchi, Hiroyuki Hayama, Takashi Nezu 2013-10-01
7757826 Damping force adjustable fluid pressure shock absorber Hiroyuki Hayama, Takashi Nezu 2010-07-20
6981577 Controlling damping force shock absorber Hiroyuki Matsumoto, Kenichi Nakamura, Masaaki Uchiyama 2006-01-03
6817454 Damping force control type hydraulic shock absorber Takashi Nezu 2004-11-16