Inventor
HIRAI TAKASHI
JP29 patents
⚠️ This page may combine multiple inventors who share the name “HIRAI TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI ELECTRIC CORP
6 patentsUS7095139B2Aug 22, 2006
Transformer inrush current elimination system
MITSUBISHI ELECTRIC CORP33 citations92
US6433980B1Aug 13, 2002
Controlled switching device
MITSUBISHI ELECTRIC CORP24 citations91
US7456739B2Nov 25, 2008
Approach detecting system
MITSUBISHI ELECTRIC CORP10 citations83
US5949343ASep 7, 1999
Supervisory apparatus for oil-filled electrical equipment
MITSUBISHI ELECTRIC CORP14 citations70
US7902696B2Mar 8, 2011
Controlled switching device
MITSUBISHI ELECTRIC CORP5 citations62
US7994912B2Aug 9, 2011
Intrusion-object detection system, method of detecting intrusion-object and method of detecting malfunction
MITSUBISHI ELECTRIC CORP3 citations54
HIRAI ENG CORP
5 patentsUS5706617AJan 13, 1998
Roof system utilizing a solar cell
HIRAI ENG CORP171 citations98
US5497587AMar 12, 1996
Roof system utilizing a solar cell
HIRAI ENG CORP139 citations98
US5367843ANov 29, 1994
Roof apparatus
HIRAI ENG CORP38 citations92
US5406936AApr 18, 1995
Roof
HIRAI ENG CORP18 citations82
US5531049AJul 2, 1996
Roof mounted light transmitting frame
HIRAI ENG CORP15 citations73
HIRAI KOSAKU KK
3 patentsFUJI XEROX CO LTD
3 patentsUS9367160B2Jun 14, 2016
Information processing apparatus, information processing method, and non-transitory computer readable medium
FUJI XEROX CO LTD2 citations63
US9582107B2Feb 28, 2017
Information processing apparatus, information processing method, and non-transitory computer readable medium
FUJI XEROX CO LTD0 citations52
US6397022B2May 28, 2002
Image forming apparatus
FUJI XEROX CO LTD1 citations43
TSUTADA HIROYUKI
2 patentsUS8779634B2Jul 15, 2014
Transformer inrush current suppression apparatus with function of determining target closing phase of three-phase transformer based on pre-arc characteristic and variation in closing time of the three-phase circuit breaker
TSUTADA HIROYUKI4 citations68
US8093885B2Jan 10, 2012
Residual magnetic flux determining apparatus
TSUTADA HIROYUKI0 citations37