Inventor
AZUMI TAKASHI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “AZUMI TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
11 patentsUS5949047ASep 7, 1999
Dust-proof portable IC card reader
HITACHI LTD45 citations95
US5686714ANov 11, 1997
Dust-proof portable IC card reader
HITACHI LTD33 citations92
US5654757AAug 5, 1997
Focusing apparatus for video camera or the like
HITACHI LTD22 citations92
US5486860AJan 23, 1996
Video camera with autofocus function and method of controlling the same
HITACHI LTD38 citations92
US4557567ADec 10, 1985
Lens system with plastic lenses compensating for temperature changes
HITACHI LTD20 citations82
US5408332AApr 18, 1995
Focusing apparatus for video camera or the like
HITACHI LTD15 citations74
US5003400AMar 26, 1991
Focusing apparatus of video camera or the like
HITACHI LTD18 citations74
US4842387AJun 27, 1989
Automatic focusing apparatus for use in video camera and the like
HITACHI LTD14 citations73
US4740676AApr 26, 1988
Range finding automatic focusing system employing a rotatable transparent plate and a half-split light receiving element
HITACHI LTD19 citations73
US4868666ASep 19, 1989
Automatic focusing apparatus having an automatic offset voltage regulating device
HITACHI LTD6 citations63
US4782356ANov 1, 1988
Automatic focusing apparatus
HITACHI LTD5 citations62
NIPPON CATALYTIC CHEM IND
3 patentsUS6906159B2Jun 14, 2005
Water-absorbent resin, hydropolymer, process for producing them, and uses of them
NIPPON CATALYTIC CHEM IND98 citations99
US7091253B2Aug 15, 2006
Water-absorbent resin, hydropolymer, process for producing them, and uses of them
NIPPON CATALYTIC CHEM IND87 citations98
US7741400B2Jun 22, 2010
Water-absorbent resin, hydropolymer, process for producing them, and uses of them
NIPPON CATALYTIC CHEM IND14 citations92