Inventor · disambiguated record
Takao Nishioka
Also filed as: NISHIOKA TAKAO
51 granted patents·3 pending applications·679 citations·filing 1986–2011
98Inventor score
Files withSUMITOMO ELECTRIC INDUSTRIES44ITAMI WORKS OF SUMITOMO ELECTR3MUROTO TEKKOSHO KK2AGENCY IND SCIENCE TECHN1DENSO CORP1
Top patents by PatentIndex Score
54 records- 0193US5599493AMethod of producing silicon nitride ceramic componentSUMITOMO ELECTRIC INDUSTRIES·Filed 1995·Granted Feb 4, 1997·94 cites·16 claims
- 0290US6237441B1Combination of shim and camSUMITOMO ELECTRIC INDUSTRIES·Filed 1999·Granted May 29, 2001·55 cites·9 claims
- 0389US7682695B2Dust core with specific relationship between particle diameter and coating thickness, and method for producing sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Granted Mar 23, 2010·21 cites·5 claims
- 0487US7678174B2Soft magnetic material, compressed powder magnetic core and method for producing compressed power magnetic coreSUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Granted Mar 16, 2010·13 cites·12 claims
- 0585US5904993AJoint body of aluminum and silicon nitride and method of preparing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1995·Granted May 18, 1999·53 cites·20 claims
- 0684US5767026ASilicon nitride ceramic and process for forming the sameAGENCY IND SCIENCE TECHN·Filed 1995·Granted Jun 16, 1998·56 cites·8 claims
- 0783US7473067B2Attachment couplerMUROTO TEKKOSHO KK·Filed 2007·Granted Jan 6, 2009·20 cites·7 claims
- 0877US6367433B2Electromagnetic actuator and valve-open-close mechanismITAMI WORKS OF SUMITOMO ELECTR·Filed 2000·Granted Apr 9, 2002·16 cites·5 claims
- 0975US6380832B2Electromagnetic actuatorITAMI WORKS OF SUMITOMO ELECTR·Filed 2000·Granted Apr 30, 2002·20 cites·5 claims
- 1071US5297365AMethod of machining silicon nitride ceramics and silicon nitride ceramics productsSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Mar 29, 1994·20 cites·2 claims
- 1170US7887647B2Soft magnetic material and dust core produced therefromSUMITOMO ELECTRIC INDUSTRIES·Filed 2006·Granted Feb 15, 2011·2 cites·6 claims
- 1270US5502011ASilicon nitride sintered bodySUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted Mar 26, 1996·21 cites·2 claims
- 1369US5023147ACeramics-metal jointed bodySUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted Jun 11, 1991·23 cites·10 claims
- 1468US5173458ASilicon nitride sintered body and process for producing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1991·Granted Dec 22, 1992·22 cites·6 claims
- 1568US4769350ASilicon nitride sintered material for cutting tools and process for making the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1987·Granted Sep 6, 1988·18 cites·8 claims
- 1666US7998361B2Soft magnetic material and powder magnetic coreSUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Granted Aug 16, 2011·1 cites·4 claims
- 1766US5234642AHigh strength silicon nitride sintered body and process for producing sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1989·Granted Aug 10, 1993·16 cites·11 claims
- 1865US7758706B2Method for producing dust core compact and dust core compactSUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Granted Jul 20, 2010·1 cites·6 claims
- 1965US6566990B2Electromagnetic actuator and valve-open-close mechanismITAMI WORKS OF SUMITOMO ELECTR·Filed 2000·Granted May 20, 2003·10 cites·11 claims
- 2064US5564966AGrind-machining method of ceramic materialsSUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted Oct 15, 1996·18 cites·4 claims
- 2163US8878642B2Dust core and method for producing the sameUENO TOMOYUKI·Filed 2011·Granted Nov 4, 2014·1 cites·8 claims
- 2260US6371063B2Valve-open-close mechanismSUMITOMO ELECTRIC INDUSTRIES·Filed 2000·Granted Apr 16, 2002·15 cites·10 claims
- 2357US7621689B2Attachment couplerMUROTO TEKKOSHO KK·Filed 2008·Granted Nov 24, 2009·8 cites·2 claims
- 2457US4764490AProcess for preparation of sintered silicon nitrideSUMITOMO ELECTRIC INDUSTRIES·Filed 1986·Granted Aug 16, 1988·13 cites·39 claims
- 2556US7258812B2Compound magnetic material and fabrication method thereofDENSO CORP·Filed 2002·Granted Aug 21, 2007·5 cites·6 claims
- 2656US5275772ASilicon nitride sintered body and process for producing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Jan 4, 1994·11 cites·1 claims
- 2754US5204297ASilicon nitride sintered body and process for producing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Apr 20, 1993·10 cites·5 claims
- 2850US5770322ACeramic sliding componentSUMITOMO ELECTRIC INDUSTRIES·Filed 1995·Granted Jun 23, 1998·11 cites·24 claims
- 2949US6367439B1Combination body of shim and camSUMITOMO ELECTRIC INDUSTRIES·Filed 1999·Granted Apr 9, 2002·10 cites·6 claims
- 3047US7641745B2Soft magnetic material and method of producing powder compactSUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Granted Jan 5, 2010·0 cites·10 claims
- 3147US6534170B2Diamond-coated sliding partSUMITOMO ELECTRIC INDUSTRIES·Filed 2000·Granted Mar 18, 2003·3 cites·7 claims
- 3247US6279454B1Fuel injection pumpSUMITOMO ELECTRIC INDUSTRIES·Filed 1999·Granted Aug 28, 2001·11 cites·3 claims
- 3347US5582215ACeramic die for cutting and shaping lead frames and method of cleaning the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1995·Granted Dec 10, 1996·13 cites·17 claims
- 3445US7601229B2Process for producing soft magnetism material, soft magnetism material and powder magnetic coreSUMITOMO ELECTRIC INDUSTRIES·Filed 2004·Granted Oct 13, 2009·1 cites·5 claims
- 3544US5647313ACombination of adjusting shim and camSUMITOMO ELECTRIC INDUSTRIES·Filed 1994·Granted Jul 15, 1997·10 cites·8 claims
- 3644US2007169851A1Soft magnetic material and dust coreKUGAI HIROKAZU·Filed 2005·Application pending·0 cites
- 3743US5372099ACeramic adjusting shimSUMITOMO ELECTRIC INDUSTRIES·Filed 1993·Granted Dec 13, 1994·9 cites·4 claims
- 3842US7588648B2Soft magnetism material and powder magnetic coreSUMITOMO ELECTRIC INDUSTRIES·Filed 2004·Granted Sep 15, 2009·0 cites·7 claims
- 3941US5720917AManufacturing method for silicon nitride-based sintered bodySUMITOMO ELECTRIC INDUSTRIES·Filed 1996·Granted Feb 24, 1998·6 cites·17 claims
- 4040US8241518B2Soft magnetic material and dust coreIGARASHI NAOTO·Filed 2007·Granted Aug 14, 2012·0 cites·1 claims
- 4140US5516269AZirconia vane for rotary compressorsSUMITOMO ELECTRIC INDUSTRIES·Filed 1995·Granted May 14, 1996·6 cites·8 claims
- 4240US2007248483A1Method for Molding Powder in Powder Metallurgy and Method for Producing Sintered PartsSUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Application pending·0 cites
- 4339US5328876AHigh strength silicon nitride sintered body and process for producing sameSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Jul 12, 1994·4 cites·2 claims
- 4439US2005016633A1Method of manufacturing soft magnetic articlesSUMITOMO ELECTRIC INDUSTRIES·Filed 2004·Application pending·0 cites
- 4538US5783314ASliding component and production method thereofSUMITOMO ELECTRIC INDUSTRIES·Filed 1996·Granted Jul 21, 1998·6 cites·18 claims
- 4638US5275986ASilicon nitride sintered bodySUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Jan 4, 1994·4 cites·2 claims
- 4736US5961907AProcess for producing silicon nitride sliding memberSUMITOMO ELECTRIC INDUSTRIES·Filed 1997·Granted Oct 5, 1999·4 cites·12 claims
- 4835US5225127AProcess for production of sintered silicon nitride made articleSUMITOMO ELECTRIC INDUSTRIES·Filed 1992·Granted Jul 6, 1993·3 cites·2 claims
- 4934US5605494AFacility for grinding silicon nitride ceramic workpieceSUMITOMO ELECTRIC INDUSTRIES·Filed 1995·Granted Feb 25, 1997·3 cites·6 claims
- 5034US5584745AMethod of machining silicon nitride ceramics and silicon nitride ceramics productsSUMITOMO ELECTRIC INDUSTRIES·Filed 1993·Granted Dec 17, 1996·2 cites·24 claims
Showing the top 50 of 54 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Takao Nishioka files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →