HK

Hirofumi Koizumi

HO Hosiden: 10 patents #29 of 328Top 9%
TA Takata: 1 patents #316 of 608Top 55%
Overall (All Time): #510,666 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
9616847 On/off detecting buckle switch Kenjiro Desaki, Takashi Ishibashi 2017-04-11
9266499 On/off detecting buckle switch Kenjiro Desaki, Takashi Ishibashi 2016-02-23
8952279 Slide switch Satoshi Yamanaka, Kenjiro Desaki 2015-02-10
8952283 Slide switch Satoshi Yamanaka, Kenjiro Desaki 2015-02-10
8921723 Slide switch Satoshi Yamanaka, Kenjiro Desaki 2014-12-30
8362382 Push-button switch Satoshi Yamanaka 2013-01-29
8327512 Slide switch for buckle apparatus Satoshi Yamanaka 2012-12-11
7498527 Compound operation input device Satoshi Yamanaka 2009-03-03
6951991 Movable contact for a push-on switch, and push-on switch Makoto Asada 2005-10-04
6381815 Buckle with non-contact switch Yutaka Yamaguchi, Akihiro Shiota, Yoshihiko Kawai, Tadayuki Asako, Takaaki Kimura 2002-05-07