Inventor · disambiguated record
Yasuo Yamanaka
Also filed as: YAMANAKA YASUO
25 granted patents·191 citations·filing 1998–2017
96Inventor score
Top patents by PatentIndex Score
25 records- 0196US9797495B2Clutch and differential device with sameGKN DRIVELINE JAPAN LTD·Filed 2016·Granted Oct 24, 2017·11 cites·5 claims
- 0294US7794643B2Apparatus and method for molding object with enhanced transferability of transfer face and object made by the sameRICOH KK·Filed 2007·Granted Sep 14, 2010·32 cites·12 claims
- 0393US8926471B2Differential deviceGKN DRIVELINE JAPAN LTD·Filed 2013·Granted Jan 6, 2015·14 cites·8 claims
- 0492US9695922B2Clutch device and differential device with reduced friction lossGKN DRIVELINE JAPAN LTD·Filed 2016·Granted Jul 4, 2017·6 cites·6 claims
- 0592US8858384B2Bevel gear and differential device therewithGKN DRIVELINE JAPAN LTD·Filed 2013·Granted Oct 14, 2014·15 cites·4 claims
- 0688US10308113B2Differential gearGKN DRIVELINE JAPAN LTD·Filed 2017·Granted Jun 4, 2019·11 cites·9 claims
- 0786US8796363B2Flame retardant resin composition and molded productHARADA TADAKATSU·Filed 2012·Granted Aug 5, 2014·6 cites·7 claims
- 0881US6565346B2Plastic molded article or product and method and apparatus for producing the same by injection moldingRICOH KK·Filed 2001·Granted May 20, 2003·12 cites·13 claims
- 0980US10385928B2Clutch with reduced load on edgesGKN DRIVELINE JAPAN LTD·Filed 2016·Granted Aug 20, 2019·2 cites·5 claims
- 1080US6620486B2Plasting molding and method and apparatus for producing the same by injection moldingRICOH KK·Filed 2001·Granted Sep 16, 2003·11 cites·35 claims
- 1177US7525710B2Scanning and imaging optical system, optical scanner, and image forming apparatus with lenses of different signs and refractive index distribution increasing toward rimRICOH KK·Filed 2005·Granted Apr 28, 2009·8 cites·13 claims
- 1274US6793868B2Plastic molding and method and apparatus for producing the same by injection moldingRICOH KK·Filed 2001·Granted Sep 21, 2004·7 cites·5 claims
- 1370US6465610B1Method and apparatus for manufacturing plastic optical element and plastic optical elementRICOH KK·Filed 2000·Granted Oct 15, 2002·7 cites·10 claims
- 1469US8481618B2Fire retardant resin compositionHARADA TADAKATSU·Filed 2009·Granted Jul 9, 2013·2 cites·10 claims
- 1568US7135139B2Method and mold assembly for producing a molded objectRICOH KK·Filed 2004·Granted Nov 14, 2006·6 cites·14 claims
- 1664US6287504B1Plastic molding and method and apparatus for producing the same by injection moldingRICOH KK·Filed 1998·Granted Sep 11, 2001·17 cites·5 claims
- 1763US6810303B2Injection mold, a production method thereof, a production system thereof, a designing apparatus and a designing computer program thereof, an injection method, a molded component, and an optical system therewithRICOH KK·Filed 2002·Granted Oct 26, 2004·5 cites·29 claims
- 1861US7872813B2Optical element, optical scanning device, and image forming apparatusRICOH CO LTD·Filed 2007·Granted Jan 18, 2011·2 cites·11 claims
- 1960US6875380B2Method and apparatus for manufacturing plastic optical element and plastic optical elementRICOH KK·Filed 2002·Granted Apr 5, 2005·3 cites·19 claims
- 2060US6702565B1Method and mold assembly for producing a molded objectRICOH KK·Filed 2000·Granted Mar 9, 2004·3 cites·34 claims
- 2156US6893586B2Plastic optical element, plastic optical element producing method and plastic optical element producing apparatusRICOH KK·Filed 2001·Granted May 17, 2005·2 cites·33 claims
- 2243US6919120B2Plastic molding and a method and a mold assembly for producing the sameRICOH KK·Filed 1999·Granted Jul 19, 2005·9 cites·15 claims
- 2342US8749863B2Plastic article, method of shaping plastic article, and optical scanning device having plastic articleOHHASHI TAKAMICHI·Filed 2011·Granted Jun 10, 2014·0 cites·11 claims
- 2434US8445628B2Copolymer resin composition, molded product, and method of manufacturing a copolymer resin compositionYAMANAKA YASUO·Filed 2010·Granted May 21, 2013·0 cites·16 claims
- 2533US8824035B2Molded plastic part, method for molding plastic part, and optical scanning device using the molded plastic partOHHASHI TAKAMICHI·Filed 2010·Granted Sep 2, 2014·0 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Yasuo Yamanaka 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 →