Inventor · disambiguated record
Masahiko Ishida
Also filed as: HAGA RYOICHI · ISHIDA MASAHIKO
92 granted patents·31 pending applications·1,481 citations·filing 1974–2023
99Inventor score
Top patents by PatentIndex Score
123 records- 0198US4491522AAnaerobic digestion process for organic wastesAGENCY IND SCIENCE TECHN·Filed 1983·Granted Jan 1, 1985·143 cites·4 claims
- 0297US4877680ARecording medium with non-porous ink-receiving layerCANON KK·Filed 1988·Granted Oct 31, 1989·118 cites·10 claims
- 0396US4354936AAnaerobic digestion processAGENCY IND SCIENCE TECHN·Filed 1981·Granted Oct 19, 1982·88 cites·16 claims
- 0495US4213857AAnaerobic digestion processAGENCY IND SCIENCE TECHN·Filed 1978·Granted Jul 22, 1980·79 cites·21 claims
- 0595US4067801AProcess and system for anaerobic treatment of biochemical wasteHITACHI LTD·Filed 1976·Granted Jan 10, 1978·77 cites·22 claims
- 0691US4868581AInk-receiving composite polymer materialCANON KK·Filed 1986·Granted Sep 19, 1989·51 cites·8 claims
- 0790US4288550ATreating process of garbage contained wastesAGENCY IND SCIENCE TECHN·Filed 1978·Granted Sep 8, 1981·35 cites·9 claims
- 0889US5101218ARecording medium with non-porous ink-receiving layer and method of use thereofCANON KK·Filed 1989·Granted Mar 31, 1992·49 cites·28 claims
- 0989US4297216AMethod for treatment of biochemical wasteHITACHI LTD·Filed 1978·Granted Oct 27, 1981·57 cites·8 claims
- 1087US11673809B2Apparatus for manufacturing polysilicon rodSHINETSU CHEMICAL CO·Filed 2021·Granted Jun 13, 2023·1 cites·4 claims
- 1187US5041723AInfrared ray detector with multiple optical filtersHORIBA LTD·Filed 1990·Granted Aug 20, 1991·76 cites·16 claims
- 1286US12479733B2Polysilicon rod and method for manufacturing polysilicon rodSHINETSU CHEMICAL CO·Filed 2023·Granted Nov 25, 2025·0 cites·3 claims
- 1386US4510243AAnaerobic digestion process of wastes containing celluloseAGENCY IND SCIENCE TECHN·Filed 1982·Granted Apr 9, 1985·49 cites·4 claims
- 1485US5055341AComposite molded articles and process for producing sameSEIKISUI CHEMICAL CO LTD·Filed 1990·Granted Oct 8, 1991·48 cites·4 claims
- 1585US4923547AProcess for producing composite molded articles from nonwoven matSEIKISUI CHEMICAL CO LTD·Filed 1988·Granted May 8, 1990·41 cites·31 claims
- 1684US4451567AMethod for pretreatment of cellulosic materialsHITACHI LTD·Filed 1981·Granted May 29, 1984·46 cites·15 claims
- 1780US7338631B2Copper alloy and method of manufacturing the sameMITSUBISHI SHINDO KK·Filed 2004·Granted Mar 4, 2008·10 cites·6 claims
- 1880US4137158AProcess for tertiary treatment of waste waters from anaerobic digestion treatment processHITACHI LTD·Filed 1976·Granted Jan 30, 1979·39 cites·4 claims
- 1979US12162762B2Polycrystalline silicon rodSHINETSU CHEMICAL CO·Filed 2021·Granted Dec 10, 2024·0 cites·11 claims
- 2079US5166067ACulturing method, system and apparatus for cell cultureHITACHI LTD·Filed 1989·Granted Nov 24, 1992·26 cites·10 claims
- 2179US4442006AAnaerobic digestion processAGENCY IND SCIENCE TECHN·Filed 1981·Granted Apr 10, 1984·37 cites·18 claims
- 2277US11411156B2Heat exchange device, heat exchange system, and heat exchange methodNEC CORP·Filed 2018·Granted Aug 9, 2022·1 cites·17 claims
- 2377US4783376ALight-transmissive recording medium and image formation method using the sameCANON KK·Filed 1986·Granted Nov 8, 1988·19 cites·30 claims
- 2475US4801497ARecording mediumCANON KK·Filed 1986·Granted Jan 31, 1989·29 cites·30 claims
- 2573US11345603B2Polycrystalline silicon bar, polycrystalline silicon rod, and manufacturing method thereofSHINETSU CHEMICAL CO·Filed 2019·Granted May 31, 2022·0 cites·12 claims
- 2672US10611635B2Hydrogen gas recovery system and hydrogen gas separation and recovery methodSHINETSU CHEMICAL CO·Filed 2016·Granted Apr 7, 2020·1 cites·9 claims
- 2772US10326069B2Thermoelectric conversion element and method for making the sameNEC CORP·Filed 2014·Granted Jun 18, 2019·2 cites·4 claims
- 2871US7029760B2Plated material and method of manufacturing the same, terminal member for connector, and connectorMITSUBISHI SHINDO KK·Filed 2003·Granted Apr 18, 2006·21 cites·11 claims
- 2971US2024150934A1Polysilicon rod and method for manufacturing polysilicon rodSHINETSU CHEMICAL CO·Filed 2023·Application pending·0 cites
- 3070US4888703AApparatus for monitoring the toxicant contamination of water by using aquatic animalsHITACHI ENG CO LTD·Filed 1987·Granted Dec 19, 1989·52 cites·13 claims
- 3170US2021395097A1Polysilicon rod and method for manufacturing polysilicon rodSHINETSU CHEMICAL CO·Filed 2021·Application pending·0 cites
- 3268US7514197B2Resist and method of forming resist patternNEC CORP·Filed 2003·Granted Apr 7, 2009·9 cites·9 claims
- 3368US5162204AApparatus and method of culturing and diagnosis of animal cells using image processingHITACHI LTD·Filed 1989·Granted Nov 10, 1992·27 cites·16 claims
- 3467US2023236165A1Quality evaluation method, manufacturing system of silicon for evaluation, manufacturing method of silicon for evaluation, and silicon for evaluationSHINETSU CHEMICAL CO·Filed 2022·Application pending·0 cites
- 3567US2023339764A1Polycrystalline silicon rod and process of manufacturing polycrystalline silicon rodSHINETSU CHEMICAL CO·Filed 2023·Application pending·0 cites
- 3666US11565939B2Silicon core wireSHINETSU CHEMICAL CO·Filed 2020·Granted Jan 31, 2023·0 cites·2 claims
- 3766US5753498AGarbage treating apparatusHITACHI LTD·Filed 1996·Granted May 19, 1998·25 cites·18 claims
- 3866US4747666AMulti-layer interference filterHORIBA LTD·Filed 1986·Granted May 31, 1988·24 cites·2 claims
- 3966US2019367374A1Polycrystalline silicon rodSHINETSU CHEMICAL CO·Filed 2019·Application pending·0 cites
- 4064US11505862B2Method for preventing contamination of base plateSHINETSU CHEMICAL CO·Filed 2021·Granted Nov 22, 2022·0 cites·6 claims
- 4164US11242620B2Polycrystalline silicon rod and method for producing polycrystalline silicon rodSHINETSU CHEMICAL CO·Filed 2018·Granted Feb 8, 2022·0 cites·2 claims
- 4264US8058112B2Semiconductor device having carbon nanotubes and method for manufacturing the sameISHIDA MASAHIKO·Filed 2007·Granted Nov 15, 2011·2 cites·12 claims
- 4364US4089917AProcess of cross-linking and extrusion molding thermoplastic polymersIKEGAI IRON WORKS LTD·Filed 1975·Granted May 16, 1978·25 cites·3 claims
- 4463US5030361AMethod of separating living cellsHITACHI LTD·Filed 1989·Granted Jul 9, 1991·12 cites·7 claims
- 4562US12330194B2Cleaning system and cleaning methodSHINETSU CHEMICAL CO·Filed 2022·Granted Jun 17, 2025·0 cites·9 claims
- 4662US9669400B2Method for purifying silane compound or chlorosilane compound, method for producing polycrystalline silicon, and method for regenerating weakly basic ion-exchange resinSHINETSU CHEMICAL CO·Filed 2014·Granted Jun 6, 2017·0 cites·12 claims
- 4761US9209001B2Sputtering apparatus and sputtering methodMORIMOTO NAOKI·Filed 2011·Granted Dec 8, 2015·1 cites·3 claims
- 4861US7485200B2Copper alloy and method of manufacturing the sameMITSUBISHI SHINDO KK·Filed 2007·Granted Feb 3, 2009·0 cites·3 claims
- 4961US2016002052A1Method for producing trichlorosilaneSHINETSU CHEMICAL CO·Filed 2014·Application pending·0 cites
- 5060US2017369325A1Method for producing trichlorosilaneSHINETSU CHEMICAL CO·Filed 2017·Application pending·0 cites
Showing the top 50 of 123 patent records by PatentIndex Score.
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