Inventor · disambiguated record
Keiichi Katayama
Also filed as: KATAYAMA KEIICHI
19 granted patents·2 pending applications·713 citations·filing 1980–2023
95Inventor score
Files withMITSUBISHI HEAVY IND LTD9MINEBEA CO LTD3MITSUBISHI ELECTRIC CORP3MINEBEA MITSUMI INC2CHICHIBU CEMENT KK1
Top patents by PatentIndex Score
21 records- 0197US6319853B1Method of manufacturing a semiconductor device using a minute resist pattern, and a semiconductor device manufactured therebyMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Nov 20, 2001·136 cites·20 claims
- 0295US5858620ASemiconductor device and method for manufacturing the sameMITSUBISHI ELECTRIC CORP·Filed 1997·Granted Jan 12, 1999·267 cites·31 claims
- 0393US6579657B1Material for forming a fine pattern and method for manufacturing a semiconductor device using the sameMITSUBISHI ELECTRIC CORP·Filed 1998·Granted Jun 17, 2003·169 cites·6 claims
- 0486US5126522AInduction heating apparatus for preventing the formation of stripes on plated steelMITSUBISHI HEAVY IND LTD·Filed 1989·Granted Jun 30, 1992·25 cites·28 claims
- 0571US4795927AControl system for a magnetic type bearingMITSUBISHI HEAVY IND LTD·Filed 1987·Granted Jan 3, 1989·27 cites·8 claims
- 0669US5317121AInduction heating apparatus having openable and closable coilMITSUBISHI HEAVY IND LTD·Filed 1992·Granted May 31, 1994·31 cites·3 claims
- 0764US9787231B2Motor driving device and control method of motor driving deviceMINEBEA CO LTD·Filed 2014·Granted Oct 10, 2017·2 cites·5 claims
- 0859US2024322181A1Carbon nanotube dispersed liquid for lithium ion battery electrodesKANSAI PAINT CO LTD·Filed 2022·Application pending·0 cites
- 0955US9136791B2Motor driving device, integrated circuit device, motor apparatus and motor driving systemINOUE TOMOHIRO·Filed 2012·Granted Sep 15, 2015·1 cites·9 claims
- 1052US2023398505A1Wet atomizerSUGINO MACH·Filed 2023·Application pending·0 cites
- 1151US4337884ASingle facerMITSUBISHI HEAVY IND LTD·Filed 1980·Granted Jul 6, 1982·11 cites·4 claims
- 1250US4471515ARolls for single facerMITSUBISHI HEAVY IND LTD·Filed 1981·Granted Sep 18, 1984·11 cites·20 claims
- 1349US4316761ASingle facerMITSUBISHI HEAVY IND LTD·Filed 1980·Granted Feb 23, 1982·10 cites·3 claims
- 1445US10361644B2Motor driving controller and motor driving control methodMINEBEA MITSUMI INC·Filed 2017·Granted Jul 23, 2019·0 cites·8 claims
- 1545US9991826B2Motor control circuit, motor drive control apparatus and control method of motor drive control apparatusMINEBEA MITSUMI INC·Filed 2017·Granted Jun 5, 2018·0 cites·7 claims
- 1643US9647584B2Motor drive controller and control method of motor drive controllerMINEBEA CO LTD·Filed 2015·Granted May 9, 2017·0 cites·10 claims
- 1743US4593549AMethod of controlling a tension levelling equipmentMITSUBISHI HEAVY IND LTD·Filed 1985·Granted Jun 10, 1986·9 cites·2 claims
- 1841US9806662B2Motor drive controller and method for controlling motorMINEBEA CO LTD·Filed 2016·Granted Oct 31, 2017·0 cites·6 claims
- 1938US4791830ABalancer of reciprocating machineMITSUBISHI HEAVY IND LTD·Filed 1986·Granted Dec 20, 1988·8 cites·7 claims
- 2035US4398328ARolls for single facerMITSUBISHI HEAVY IND LTD·Filed 1981·Granted Aug 16, 1983·5 cites·7 claims
- 2129US4594209AProcess for the preparation of voltage non-linearity type resistorsCHICHIBU CEMENT KK·Filed 1984·Granted Jun 10, 1986·1 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →