YK

Yasuo Kaminaga

HI Hitachi: 12 patents #3,472 of 28,497Top 15%
HA Hitachi Appliances: 1 patents #56 of 109Top 55%
Overall (All Time): #423,360 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
8207717 Buck-boost DC-DC converter with auxiliary inductors for zero current switching Junpei Uruno, Hiroyuki Shoji, Akihiko Kanouda 2012-06-26
7557546 Unidirectional DC-DC converter Junpei Uruno, Hiroyuki Shoji, Akihiko Kanouda 2009-07-07
7551462 Soft switching DC-DC converter including a buck converter and a boost converter sharing a common transformer Junpei Uruno, Hiroyuki Shoji, Akihiko Kanouda 2009-06-23
6728811 Input/output device for connection and disconnection of active lines Tsutomu Yamada, Kenichi Kurosawa, Kouji Masui, Akihiro Ohashi 2004-04-27
6393509 Input/output device for connection and disconnection of active lines Tsutomu Yamada, Kenichi Kurosawa, Kouji Masui, Akihiro Ohashi 2002-05-21
6289407 Input/output device for connection and disconnection of active lines Tsutomu Yamada, Kenichi Kurosawa, Kouji Masui, Akihiro Ohashi 2001-09-11
6160275 Semiconductor gate array device Yoji Nishio, Isamu Kobayashi, Yoshihiko Yamamoto, Nozomi Horino, Kousaku Hirose 2000-12-12
6038615 Input/output device for connection and disconnection of active lines Tsutomu Yamada, Kenichi Kurosawa, Kouji Masui, Akihiro Ohashi 2000-03-14
5880602 Input and output buffer circuit Yoji Nishio 1999-03-09
5663659 Semiconductor integrated circuit device comprising CMOS transistors and differentiator Yoji Nishio, Akihiro Tamba, Yutaka Kobayashi, Masataka Minami 1997-09-02
5614848 High-speed semiconductor integrated circuit device composed of CMOS and bipolar transistors Yoji Nishio, Akihiro Tamba, Yutaka Kobayashi, Masataka Minami 1997-03-25
5604417 Semiconductor integrated circuit device Yoji Nishio, Akihiro Tamba, Yutaka Kobayashi, Masataka Minami 1997-02-18