Inventor
NISHIJIMA AKIO
JP18 patents
⚠️ This page may combine multiple inventors who share the name “NISHIJIMA AKIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ALPS ELECTRIC CO LTD
12 patentsUS5665946ASep 9, 1997
Combined-operation type switching apparatus including rotational and push operators
ALPS ELECTRIC CO LTD93 citations95
US6239391B1May 29, 2001
Keyboard assembly having highly waterproof key switches
ALPS ELECTRIC CO LTD37 citations92
US5621196AApr 15, 1997
Rotary operation switch and multidirection input apparatus
ALPS ELECTRIC CO LTD127 citations92
US5510810AApr 23, 1996
Display screen control apparatus
ALPS ELECTRIC CO LTD36 citations89
US6489576B2Dec 3, 2002
Transparent keyboard device
ALPS ELECTRIC CO LTD9 citations74
US6130388AOct 10, 2000
Keyboard device
ALPS ELECTRIC CO LTD12 citations73
US4613737ASep 23, 1986
Low profile pushbutton switch with tactile feedback
ALPS ELECTRIC CO LTD10 citations73
US6507483B2Jan 14, 2003
Keyboard device with palmrest stored therein
ALPS ELECTRIC CO LTD10 citations72
US6485209B2Nov 26, 2002
Keyboard device capable of changing inclination angle of keyboard main body
ALPS ELECTRIC CO LTD9 citations72
US5874946AFeb 23, 1999
Image control device and data input device to be used therefor
ALPS ELECTRIC CO LTD10 citations67
US9114825B2Aug 25, 2015
Input device and control system of in-vehicle device
ALPS ELECTRIC CO LTD3 citations62
US6164852ADec 26, 2000
Keyboard device having a resin-coated connector held in improved fixed state
ALPS ELECTRIC CO LTD1 citations52
DENKI KAGAKU KOGYO KK
4 patentsUS4664900AMay 12, 1987
Electrically conductive compositions
DENKI KAGAKU KOGYO KK33 citations88
US4608244AAug 26, 1986
Acetylene black
DENKI KAGAKU KOGYO KK18 citations67
US5268350ADec 7, 1993
Binder resin for a heat transfer layer and heat transfer ink ribbon
DENKI KAGAKU KOGYO KK1 citations45
US5238996AAug 24, 1993
Binder resin for a heat transfer layer and heat transfer ink ribbon
DENKI KAGAKU KOGYO KK0 citations45