Inventor · disambiguated record
Ryuichi Ogawa
Also filed as: OGAWA RYUICHI
22 granted patents·3 pending applications·514 citations·filing 1988–2021
95Inventor score
Top patents by PatentIndex Score
25 records- 0198US10169762B2Risk analysis device, risk analysis method and program storage mediumNEC CORP·Filed 2013·Granted Jan 1, 2019·217 cites·12 claims
- 0293US6072479AMultimedia scenario editor calculating estimated size and costNEC CORP·Filed 1997·Granted Jun 6, 2000·92 cites·9 claims
- 0388US7364083B2IC card with built-in coprocessor for auxiliary arithmetic, and control method thereofSHARP KK·Filed 2005·Granted Apr 29, 2008·14 cites·12 claims
- 0479US4933768ASound reproducerSANYO ELECTRIC CO·Filed 1989·Granted Jun 12, 1990·43 cites·13 claims
- 0577US11563367B2Power conversion systemMEIDENSHA ELECTRIC MFG CO LTD·Filed 2020·Granted Jan 24, 2023·1 cites·9 claims
- 0676US7213117B21-chip microcomputer having controlled access to a memory and IC card using the 1-chip microcomputerNIPPON TELEGRAPH & TELEPHONE·Filed 2001·Granted May 1, 2007·21 cites·26 claims
- 0774US4977615ADiversity receiverSANYO ELECTRIC CO·Filed 1989·Granted Dec 11, 1990·44 cites·9 claims
- 0866US6598137B1Microcomputer having built-in nonvolatile memory for simultaneous use as a program area and a data areaSHARP KK·Filed 2000·Granted Jul 22, 2003·14 cites·20 claims
- 0963US4905283ASurround decoderSANYO ELECTRIC CO·Filed 1989·Granted Feb 27, 1990·20 cites·5 claims
- 1062US8954960B2Thin client system and method of implementing thin client systemOGAWA RYUICHI·Filed 2010·Granted Feb 10, 2015·2 cites·22 claims
- 1157US11777428B2Power conversion system and method for controlling power conversion systemMEIDENSHA ELECTRIC MFG CO LTD·Filed 2021·Granted Oct 3, 2023·0 cites·9 claims
- 1257US9363290B2Access control information generating systemOGAWA RYUICHI·Filed 2011·Granted Jun 7, 2016·1 cites·13 claims
- 1356US11444525B2Inverter system and inverter system control methodMEIDENSHA ELECTRIC MFG CO LTD·Filed 2020·Granted Sep 13, 2022·0 cites·5 claims
- 1454US5597269ACutting tool for honeycomb coreFUJI HEAVY IND LTD·Filed 1994·Granted Jan 28, 1997·15 cites·9 claims
- 1554US4870684APLL circuit for generating output signal synchronized with input signal by switching frequency dividing ratioSANYO ELECTRIC CO·Filed 1988·Granted Sep 26, 1989·12 cites·9 claims
- 1645US2008005799A1Program execution control circuit, computer system, and IC cardSHARP KK·Filed 2007·Application pending·0 cites
- 1743US9183009B2Policy update apparatus, policy management system, policy update method, policy management method and recording mediumOGAWA RYUICHI·Filed 2012·Granted Nov 10, 2015·0 cites·12 claims
- 1843US2008162837A1Nonvolatile Memory SystemSHARP KK·Filed 2005·Application pending·0 cites
- 1941US11575331B2Serial multiplex inverter control deviceMEIDENSHA ELECTRIC MFG CO LTD·Filed 2020·Granted Feb 7, 2023·0 cites·4 claims
- 2041US2014366084A1Management system, management method, and non-transitory storage mediumNEC CORP·Filed 2013·Application pending·0 cites
- 2140US11601039B2Power converter control system using fixed pulse pattern, and control methodMEIDENSHA ELECTRIC MFG CO LTD·Filed 2020·Granted Mar 7, 2023·0 cites·10 claims
- 2239US4852167AFMX stereophonic receiverSANYO ELECTRIC CO·Filed 1988·Granted Jul 25, 1989·5 cites·8 claims
- 2335US4809328AFM/FMX stereophonic receiverSANYO ELECTRIC CO·Filed 1988·Granted Feb 28, 1989·6 cites·14 claims
- 2434US5292996AMicrocomputer with function to output sound effectsSHARP KK·Filed 1992·Granted Mar 8, 1994·3 cites·19 claims
- 2533US4864637AFMX stereophonic broadcast receiverSANYO ELECTRIC CO·Filed 1988·Granted Sep 5, 1989·4 cites·2 claims
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