Inventor
SHIRAISHI KATSUHIKO
JP18 patents
⚠️ This page may combine multiple inventors who share the name “SHIRAISHI KATSUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
7 patentsUS5850065ADec 15, 1998
Gas circuit breaker
HITACHI LTD24 citations92
US9959999B2May 1, 2018
Method for controlling power switching apparatus
HITACHI LTD4 citations72
US9899172B2Feb 20, 2018
Circuit breaker and circuit breaker operating method
HITACHI LTD2 citations72
US5777842AJul 7, 1998
Transformer station and breaker apparatus
HITACHI LTD11 citations72
US9620315B2Apr 11, 2017
Gas circuit breaker
HITACHI LTD2 citations71
US10199188B2Feb 5, 2019
Gas circuit breaker
HITACHI LTD1 citations60
US9754742B2Sep 5, 2017
Gas circuit breaker
HITACHI LTD0 citations39
MITSUBISHI PENCIL CO
6 patentsUS5348989ASep 20, 1994
Ink volatilization preventing composition for aqueous ball point pen
MITSUBISHI PENCIL CO52 citations95
US5693313ADec 2, 1997
Teeth coating liquid
MITSUBISHI PENCIL CO34 citations92
US5733344AMar 31, 1998
Temporary hair dyes containing a dispersant, titanium black, pigments and an alcoholic solvent, and processes of producing temporary hair dyes
MITSUBISHI PENCIL CO17 citations83
US6132124AOct 17, 2000
Ink follower for aqueous ballpoint pen using gel-like material and solid piece
MITSUBISHI PENCIL CO15 citations73
US6599352B1Jul 29, 2003
Water-based ink composition for writing instrument
MITSUBISHI PENCIL CO4 citations62
US6391927B1May 21, 2002
Method for manufacturing ink follower for water base ballpoint pens
MITSUBISHI PENCIL CO3 citations61
MITSUBISHI PENCIL KABUSHIKIKAI
3 patentsUS6521035B1Feb 18, 2003
Ink follow up composition for water-base ball pen
MITSUBISHI PENCIL KABUSHIKIKAI6 citations73
US6376560B1Apr 23, 2002
Ink follower for water-base ballpoint pens and method of manufacturing the same
MITSUBISHI PENCIL KABUSHIKIKAI4 citations61
US6227738B1May 8, 2001
Method of manufacturing ink follower for water-base ballpoint pens
MITSUBISHI PENCIL KABUSHIKIKAI3 citations61