HU

Heihachiro Umemura

SC Shinko Electric Industries Co.: 11 patents #12 of 267Top 5%
Overall (All Time): #472,869 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
6333476 Push-button switch 2001-12-25
5994652 Push button switch assembly with interlocking element 1999-11-30
5965854 Multiple push-button switch assembly with interlocking mechanism 1999-10-12
5932854 Multiple push-button assembly with interlocking mechanism 1999-08-03
5576525 Push button detent or retaining mechanism for push button switch 1996-11-19
5473203 Push-button switch device 1995-12-05
5382836 Push-button switch device 1995-01-17
5321311 Apparatus for detecting erroneous operation in a non-contact push-button switch Michio Shibata 1994-06-14
5272383 Method and apparatus for preventing erroneous operation in non-contact push-button switch Michio Shibata 1993-12-21
5243291 Electromagnetic contactor deposition detecting apparatus which detects load current and switch current 1993-09-07
4816671 Push-button switch with multi-stage action 1989-03-28