Inventor · disambiguated record
Takashi Iijima
Also filed as: IIJIMA TAKASHI · TOYOGUCHI YOSHINORI
99 granted patents·21 pending applications·5,281 citations·filing 1978–2022
99Inventor score
Files withFUJITSU LTD28MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17TOKYO KIKAI SEISAKUSHO LTD17CANON KK6NIPPON STEEL & SUMITOMO METAL CORP5
Top patents by PatentIndex Score
120 records- 0199US5185256AMethod for making a biosensorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Feb 9, 1993·541 cites·3 claims
- 0298US4224125AEnzyme electrodeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1978·Granted Sep 23, 1980·873 cites·10 claims
- 0397US5205560AGolf club headYAMAHA CORP·Filed 1991·Granted Apr 27, 1993·230 cites·5 claims
- 0497US5120420ABiosensor and a process for preparation thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1989·Granted Jun 9, 1992·1.3k cites·18 claims
- 0595US5171689ASolid state bio-sensorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1989·Granted Dec 15, 1992·478 cites·17 claims
- 0695US4431507AEnzyme electrodeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1982·Granted Feb 14, 1984·406 cites·7 claims
- 0795US4392933AElectrochemical measuring apparatus comprising enzyme electrodeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1982·Granted Jul 12, 1983·388 cites·1 claims
- 0894US8493735B2Liquid cooling arrangement for electronic apparatusIIJIMA TAKASHI·Filed 2010·Granted Jul 23, 2013·30 cites·5 claims
- 0993US5505126ADampening arrangement for a printing pressTOKYO KIKAI SEISAKUSHO LTD·Filed 1995·Granted Apr 9, 1996·49 cites·8 claims
- 1092US6717816B1Shock absorbing apparatus for internal component assembled within electronic apparatusFUJITSU LTD·Filed 2000·Granted Apr 6, 2004·38 cites·3 claims
- 1190US8529785B2Metal oxideKUBOTA MAKOTO·Filed 2009·Granted Sep 10, 2013·12 cites·12 claims
- 1290US7931821B2Oxynitride piezoelectric material and method of producing the sameCANON KK·Filed 2009·Granted Apr 26, 2011·12 cites·8 claims
- 1390US7906889B2Metal oxide, piezoelectric material and piezoelectric elementCANON KK·Filed 2009·Granted Mar 15, 2011·12 cites·6 claims
- 1490US7706137B2Electronic apparatusFUJITSU LTD·Filed 2008·Granted Apr 27, 2010·23 cites·11 claims
- 1590US7639166B2D/A converter circuitSANYO ELECTRIC CO·Filed 2008·Granted Dec 29, 2009·22 cites·5 claims
- 1690US7298123B2Apparatus and circuit for power supply, and apparatus for controlling large current loadFURUKAWA ELECTRIC CO LTD·Filed 2005·Granted Nov 20, 2007·18 cites·20 claims
- 1790US4967664AMethod and apparatus for automatically cleaning liquid supply rollers of offset pressTOKYO KIKAI SEISAKUSHO LTD·Filed 1989·Granted Nov 6, 1990·30 cites·2 claims
- 1889US8034250B2Piezoelectric materialCANON KK·Filed 2009·Granted Oct 11, 2011·10 cites·5 claims
- 1989US7440267B2Electronic apparatusFUJITSU LTD·Filed 2005·Granted Oct 21, 2008·24 cites·11 claims
- 2088US4271242AActive material for positive electrode of batteryMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1979·Granted Jun 2, 1981·41 cites·1 claims
- 2187US5255606ADrag roller device for printing apparatusKABUSHIKIKAISHA TOKYO KIKAI SE·Filed 1991·Granted Oct 26, 1993·32 cites·3 claims
- 2286US8980117B2Piezoelectric materialKUBOTA MAKOTO·Filed 2010·Granted Mar 17, 2015·7 cites·7 claims
- 2385US7961464B2Electronic deviceFUJITSU LTD·Filed 2008·Granted Jun 14, 2011·12 cites·5 claims
- 2484US4658498AProcess for producing rechargeable electrochemical deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1984·Granted Apr 21, 1987·31 cites·24 claims
- 2584US4376689ACoenzyme immobilized electrodeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1981·Granted Mar 15, 1983·47 cites·3 claims
- 2682US5983798ADoctor blade apparatusTOKYO KIKAI SEISAKUSHO LTD·Filed 1999·Granted Nov 16, 1999·24 cites·18 claims
- 2782US5069127ASpot printing method in rotary press and blanket cylinder for spot printingTOKYO KIKAI SEISAKUSHO LTD·Filed 1991·Granted Dec 3, 1991·23 cites·20 claims
- 2882US4321123ACoenzyme immobilized electrodeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1980·Granted Mar 23, 1982·40 cites·5 claims
- 2981US7042141B2Method of producing lead zirconate titanate-based thin film, dielectric device and dielectric thin filmCANON KK·Filed 2004·Granted May 9, 2006·25 cites·30 claims
- 3079US8518290B2Piezoelectric materialWATANABE TAKAYUKI·Filed 2009·Granted Aug 27, 2013·5 cites·8 claims
- 3179US7349201B2Electronic apparatusFUJITSU LTD·Filed 2005·Granted Mar 25, 2008·11 cites·11 claims
- 3278US11394034B2Support for polymer electrolyte fuel cell catalyst, method of producing support for polymer electrolyte fuel cell catalyst, catalyst layer for polymer electrolyte fuel cell, and fuel cellNIPPON STEEL CHEMICAL & MAT CO LTD·Filed 2018·Granted Jul 19, 2022·1 cites·12 claims
- 3378US11073199B2Breather deviceTOYOTA MOTOR CO LTD·Filed 2020·Granted Jul 27, 2021·1 cites·9 claims
- 3478US7580265B2Heat sink, circuit board, and electronic apparatusFUJITSU LTD·Filed 2007·Granted Aug 25, 2009·8 cites·8 claims
- 3578US5378295AGolf club head and a method for producing the sameYAMAHA CORP·Filed 1993·Granted Jan 3, 1995·60 cites·8 claims
- 3677US6574101B2Portable electronic device capable of efficiently cooling heat-generation electronic componentFUJITSU LTD·Filed 2001·Granted Jun 3, 2003·25 cites·12 claims
- 3775US10886539B2Catalyst-carrier carbon material, solid-polymer fuel cell catalyst, solid-polymer fuel cell, and method for manufacturing catalyst-carrier carbon materialNIPPON STEEL & SUMITOMO METAL CORP·Filed 2016·Granted Jan 5, 2021·1 cites·35 claims
- 3874US8270156B2Electronic deviceIIJIMA TAKASHI·Filed 2011·Granted Sep 18, 2012·3 cites·4 claims
- 3973US7638722B2Operating piece unit for switch and electronic apparatusFUJITSU LTD·Filed 2007·Granted Dec 29, 2009·6 cites·8 claims
- 4072US8999606B2Solid polymer type fuel cell catalyst, solid polymer type fuel cell electrode, and fuel cellIIJIMA TAKASHI·Filed 2009·Granted Apr 7, 2015·2 cites·12 claims
- 4171US10096837B2Supporting carbon material for solid polymer fuel cell and catalyst metal particle-supporting carbon materialNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Granted Oct 9, 2018·1 cites·20 claims
- 4271US8518292B2Piezoelectric material, method of manufacturing the same, and piezoelectric deviceSAITO HIROSHI·Filed 2012·Granted Aug 27, 2013·2 cites·5 claims
- 4371US7161800B2Electronic apparatus and unit mounting mechanismFUJITSU LTD·Filed 2005·Granted Jan 9, 2007·5 cites·15 claims
- 4471US5603262AInk-furnishing apparatusTOKYO KIKAI SEISAKUSHO LTD·Filed 1995·Granted Feb 18, 1997·19 cites·18 claims
- 4571US4336315AOrganic electrolyte cell with manganese dioxide cathode and a light metal anodeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1981·Granted Jun 22, 1982·22 cites·6 claims
- 4670US8299688B2Piezoelectric material, method of manufacturing the same, and piezoelectric deviceSAITO HIROSHI·Filed 2010·Granted Oct 30, 2012·2 cites·6 claims
- 4770US7215539B2Display device having panel display unitFUJITSU LTD·Filed 2006·Granted May 8, 2007·4 cites·13 claims
- 4869US10003085B2Carbon support material for solid polymer type fuel cell use and metal catalyst particle- supporting carbon material and methods of production of sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2014·Granted Jun 19, 2018·1 cites·13 claims
- 4969US9851754B2Information processing deviceFUJITSU LTD·Filed 2016·Granted Dec 26, 2017·1 cites·19 claims
- 5067US6393983B1Ink rail for printing pressTOKYO KIKAI SEISAKUSHO LTD·Filed 2000·Granted May 28, 2002·6 cites·11 claims
Showing the top 50 of 120 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →