Inventor
KAMADA SEIJI
JP21 patents
⚠️ This page may combine multiple inventors who share the name “KAMADA SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOMATSU MFG CO LTD
11 patentsUS6308516B1Oct 30, 2001
Control device for hydraulically-operated equipment
KOMATSU MFG CO LTD115 citations97
US7283810B1Oct 16, 2007
Communication device of mobile unit
KOMATSU MFG CO LTD89 citations96
US7149530B1Dec 12, 2006
Device for presenting information to mobile
KOMATSU MFG CO LTD64 citations96
US6856879B2Feb 15, 2005
Work machine management device
KOMATSU MFG CO LTD59 citations95
US6438953B1Aug 27, 2002
Control device for hydraulic drive machine
KOMATSU MFG CO LTD25 citations92
US6173573B1Jan 16, 2001
Control device for hydraulic drive machine
KOMATSU MFG CO LTD37 citations92
US5511458AApr 30, 1996
Automatic cushioning control apparatus for cylinder of working machine
KOMATSU MFG CO LTD30 citations92
US6630747B1Oct 7, 2003
Connector and control pattern change device, data change device and failed area determination device using this connector
KOMATSU MFG CO LTD33 citations90
US5446981ASep 5, 1995
Method of selecting automatic operation mode of working machine
KOMATSU MFG CO LTD55 citations89
US7110728B2Sep 19, 2006
Mobile body communication device
KOMATSU MFG CO LTD18 citations83
US9792737B2Oct 17, 2017
Construction machine and operation state management system for the same
KOMATSU MFG CO LTD0 citations40
HITACHI LTD
4 patentsUS5524087AJun 4, 1996
Method of forming a signal wave from first and second waveform data
HITACHI LTD14 citations72
US5379325AJan 3, 1995
Clock generating apparatus, data transmitting/receiving apparatus and data transmitting/receiving method
HITACHI LTD16 citations72
US5517647AMay 14, 1996
Communication control system and information processing system
HITACHI LTD4 citations63
US5418734AMay 23, 1995
Finely adjustable signal wave forming circuit including complementary clock signal counters
HITACHI LTD2 citations61