Inventor · disambiguated record
Yoshiki Chujo
Also filed as: CHUJO YOSHIKI
28 granted patents·2 pending applications·603 citations·filing 1981–2025
97Inventor score
Files withTOYOTA MOTOR CO LTD17OTSUKA TAKESHI3NIPPON DENSO CO2SUMITOMO OSAKA CEMENT CO LTD2CHUJO YOSHIKI1
Top patents by PatentIndex Score
30 records- 0196US5035358AFuel injector for use in an engineTOYOTA MOTOR CO LTD·Filed 1990·Granted Jul 30, 1991·95 cites·13 claims
- 0296US4739614ADouble air-fuel ratio sensor system in internal combustion engineTOYOTA MOTOR CO LTD·Filed 1986·Granted Apr 26, 1988·70 cites·108 claims
- 0394US4942860AEngine control systemTOYOTA MOTOR CO LTD·Filed 1988·Granted Jul 24, 1990·47 cites·16 claims
- 0484US4528961AMethod of and system for lean-controlling air-fuel ratio in electronically controlled engineTOYOTA MOTOR CO LTD·Filed 1983·Granted Jul 16, 1985·26 cites·8 claims
- 0582US9006354B2Composite composition of inorganic oxide particles and silicone resin, method of manufacturing the same, transparent composite, and method of manufacturing the sameOTSUKA TAKESHI·Filed 2011·Granted Apr 14, 2015·2 cites·8 claims
- 0680US4836174AEngine control systemTOYOTA MOTOR CO LTD·Filed 1988·Granted Jun 6, 1989·24 cites·8 claims
- 0779US4693076ADouble air-fuel ratio sensor system having improved response characteristicsTOYOTA MOTOR CO LTD·Filed 1986·Granted Sep 15, 1987·24 cites·36 claims
- 0878US9150698B2Composite composition of inorganic oxide particles and silicone resin, method of manufacturing the same, transparent composite, and method of manufacturing the sameSUMITOMO OSAKA CEMENT CO LTD·Filed 2014·Granted Oct 6, 2015·2 cites·8 claims
- 0978US4905654ADevice for controlling an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1988·Granted Mar 6, 1990·21 cites·12 claims
- 1077US4538575ADevice for controllably heating oxygen sensorTOYOTA MOTOR CO LTD·Filed 1983·Granted Sep 3, 1985·20 cites·22 claims
- 1176US4459669AMethod and apparatus for controlling the air-fuel ratio in an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1981·Granted Jul 10, 1984·20 cites·16 claims
- 1275US5195365ADevice for detecting combustion pressure of an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1991·Granted Mar 23, 1993·38 cites·13 claims
- 1373US9540491B2Organic-inorganic composite, composition for formation of organic-inorganic composite, and inkOTSUKA TAKESHI·Filed 2011·Granted Jan 10, 2017·1 cites·10 claims
- 1473US4745741ADouble air-fuel ratio sensor system having improved response characteristicsTOYOTA MOTOR CO LTD·Filed 1986·Granted May 24, 1988·19 cites·144 claims
- 1573US4491921AMethod and apparatus for controlling the air fuel ratio in an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1981·Granted Jan 1, 1985·18 cites·24 claims
- 1672US6562754B1Process for making an adsorbentDENSO CORP·Filed 2000·Granted May 13, 2003·14 cites·1 claims
- 1771US4990235AOxygen sensorTOYOTA JIDOSHA KABUSHIKI·Filed 1990·Granted Feb 5, 1991·36 cites·9 claims
- 1869US8299283B2Contrast agent containing silsesquioxaneCHUJO YOSHIKI·Filed 2008·Granted Oct 30, 2012·1 cites·15 claims
- 1966US4458319AMethod and apparatus for controlling the air-fuel ratio in an internal combustion engineTOYOTA MOTOR CO LTD·Filed 1981·Granted Jul 3, 1984·14 cites·14 claims
- 2063US5270663AApparatus for detecting a liquid mixing ratioNIPPON DENSO CO·Filed 1992·Granted Dec 14, 1993·28 cites·9 claims
- 2163US2025101231A1Pigment and method for producing same, solution, metal hydroxyl amount evaluation method, and metal hydroxyl processing rate evaluation methodSUMITOMO OSAKA CEMENT CO LTD·Filed 2023·Application pending·0 cites
- 2262US4924837AInternal combustion engine having electric controlled fuel injection with oxygen sensor for detecting intake air amountTOYOTA MOTOR CO LTD·Filed 1989·Granted May 15, 1990·13 cites·9 claims
- 2361US4729219ADouble air-fuel ratio sensor system having improved response characteristicsTOYOTA MOTOR CO LTD·Filed 1986·Granted Mar 8, 1988·13 cites·38 claims
- 2455US2025231116A1Method for observing surfaceTOKYO ELECTRON LTD·Filed 2025·Application pending·0 cites
- 2552US5298147AOxygen concentration sensorNIPPON DENSO CO·Filed 1992·Granted Mar 29, 1994·16 cites·3 claims
- 2649US5338431AOxygen concentration detecting apparatusNIPPON SOKEN·Filed 1992·Granted Aug 16, 1994·15 cites·6 claims
- 2747US4703619ADouble air-fuel ratio sensor system having improved response characteristicsTOYOTA MOTOR CO LTD·Filed 1986·Granted Nov 3, 1987·8 cites·14 claims
- 2845US9976079B2Organic-inorganic composite, organic-inorganic composite composition and inkOTSUKA TAKESHI·Filed 2012·Granted May 22, 2018·0 cites·17 claims
- 2941US6444751B1Process for producing vinyl alcohol polymer compositionKURARAY CO·Filed 1999·Granted Sep 3, 2002·9 cites·18 claims
- 3035US5372838AProcess for fabricating electrode of oxygen sensorTOYOTA MOTOR CO LTD·Filed 1992·Granted Dec 13, 1994·9 cites·11 claims
Join the waitlist — get patent alerts
Get an alert when Yoshiki Chujo 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 →