Inventor
SERIZAWA TAKASHI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “SERIZAWA TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
8 patentsUS4783155ANov 8, 1988
Optical device with variably shaped optical surface and a method for varying the focal length
CANON KK140 citations99
US4714326ADec 22, 1987
Method and element for optical modulation
CANON KK98 citations96
US4971423ANov 20, 1990
Gradient-index-type optical device
CANON KK23 citations92
US4783141ANov 8, 1988
Array lens
CANON KK42 citations92
US4781445ANov 1, 1988
Optical device having positionally changeable optical surfaces and a method of varying an image forming position
CANON KK39 citations92
US4778256AOct 18, 1988
Process for producing optical element
CANON KK27 citations92
US4712882ADec 15, 1987
Variable focal length lens
CANON KK36 citations92
US5032000AJul 16, 1991
Gradient index-type optical device and process for production thereof
CANON KK14 citations71
OKI DATA KK
4 patentsUS7167671B2Jan 23, 2007
Toner draining mechanism, collected toner container, and image forming apparatus
OKI DATA KK7 citations71
US7024130B2Apr 4, 2006
Rotating body, cooling apparatus that cools a rotating body, and image forming apparatus that uses a rotating body and a cooling apparatus
OKI DATA KK6 citations63
US6957028B2Oct 18, 2005
Image forming apparatus having a blade member with a semi-conductive member installed there on
OKI DATA KK2 citations63
US6909860B2Jun 21, 2005
Image forming apparatus having a gap between toner-supplying and developing rollers
OKI DATA KK0 citations52
TANITA SEISAKUSHO KK
3 patentsUS7477937B2Jan 13, 2009
Bioelectrical impedance measuring apparatus
TANITA SEISAKUSHO KK32 citations92
US6618616B2Sep 9, 2003
Bioelectrical impedance measuring apparatus
TANITA SEISAKUSHO KK31 citations92
US6532385B2Mar 11, 2003
Living body measuring apparatus with built-in weight meter
TANITA SEISAKUSHO KK21 citations92