Inventor · disambiguated record
Yasumichi Tokuoka
Also filed as: TOKUOKA YASUMICHI
27 granted patents·530 citations·filing 1973–2004
97Inventor score
Top patents by PatentIndex Score
27 records- 0195US6124769AElectronic device, and its fabrication methodTDK CORP·Filed 1999·Granted Sep 26, 2000·110 cites·25 claims
- 0295US5419938AMagnetic recording medium comprising two magnetic layers of hexagonal ferrite magnetic particles and binder wherein the easy axes of the particle is specifiedTDK CORP·Filed 1993·Granted May 30, 1995·111 cites·6 claims
- 0393US6550117B1Multilayer ceramic electronic element and manufacturing method thereforTDK CORP·Filed 2000·Granted Apr 22, 2003·54 cites·5 claims
- 0490US4309459AProcess for producing SiO2 coated iron oxide powder for use in the preparation of acicular magnetic iron or iron oxide powderTDK ELECTRONICS CO LTD·Filed 1980·Granted Jan 5, 1982·35 cites·3 claims
- 0584US4599266AMagnetic recording mediumTDK CORP·Filed 1985·Granted Jul 8, 1986·28 cites·13 claims
- 0678US5160761AMethod for making a magnetic diskTDK CORP·Filed 1992·Granted Nov 3, 1992·26 cites·3 claims
- 0767US5277977AFerromagnetic stabilized ultrafine spherical hexagonal crystalline Fe2TDK CORP·Filed 1989·Granted Jan 11, 1994·13 cites·18 claims
- 0865US4067755AMethod of making powdered magnetic iron oxide materialTDK ELECTRONICS CO LTD·Filed 1975·Granted Jan 10, 1978·12 cites·9 claims
- 0963US5140486AMagnetic recording and reproductionTDK CORP·Filed 1990·Granted Aug 18, 1992·14 cites·5 claims
- 1063US4069367AMagnetic powder material comprising iron oxide particles with a copper-cobalt alloy coatingTDK ELECTRONICS CO LTD·Filed 1973·Granted Jan 17, 1978·16 cites·6 claims
- 1158US4347291AMagnetic recording medium and preparation thereofTDK ELECTRONICS CO LTD·Filed 1980·Granted Aug 31, 1982·9 cites·2 claims
- 1257US4113528AMethod of preventing deterioration of characteristics of ferromagnetic metal or alloy particlesTDK ELECTRONICS CO LTD·Filed 1976·Granted Sep 12, 1978·8 cites·4 claims
- 1354US5221322AMethod of making ferromagnetic ultrafine particlesTDK CORP·Filed 1992·Granted Jun 22, 1993·14 cites·7 claims
- 1452US3953656AMagnetic recording medium and preparation thereofTDK ELECTRONICS CO LTD·Filed 1974·Granted Apr 27, 1976·10 cites·1 claims
- 1551US7641727B2Electrode level difference absorbing print paste and method of producing electronic deviceTDK CORP·Filed 2004·Granted Jan 5, 2010·1 cites·5 claims
- 1651US5182693AMagnetic diskTDK CORP·Filed 1992·Granted Jan 26, 1993·8 cites·3 claims
- 1750US4010310AMagnetic powderTDK ELECTRONICS CO LTD·Filed 1975·Granted Mar 1, 1977·10 cites·5 claims
- 1848US4221614AMethod of manufacturing ferromagnetic magnetic metal powderTDK ELECTRONICS CO LTD·Filed 1979·Granted Sep 9, 1980·10 cites·10 claims
- 1946US4339425AProcess for producing acicular hydrated ferric oxide particlesTDK ELECTRONICS CO LTD·Filed 1980·Granted Jul 13, 1982·5 cites·1 claims
- 2043US4670337AMagnetic recording mediumTDK CORP·Filed 1985·Granted Jun 2, 1987·10 cites·4 claims
- 2142US7638010B2Multilayer ceramic device and the production method thereofTDK CORP·Filed 2004·Granted Dec 29, 2009·4 cites·6 claims
- 2241US5256479AFerromagnetic ultrafine particles, method of making, and recording medium using the sameTDK CORP·Filed 1992·Granted Oct 26, 1993·7 cites·6 claims
- 2338US4684546AMethod of making a magnetic recording mediumTDK CORP·Filed 1986·Granted Aug 4, 1987·3 cites·4 claims
- 2438US4097313AMethod of recovery of ferromagnetic metal or alloy particles by using a magnetic drumTDK ELECTRONICS CO LTD·Filed 1976·Granted May 27, 1978·6 cites·5 claims
- 2534US4222798AMethod of manufacturing ferromagnetic metal powderTDK ELECTRONICS CO LTD·Filed 1979·Granted Sep 16, 1980·5 cites·4 claims
- 2632US4348430AProcess for producing magnetic particles for magnetic recording mediumTDK ELECTRONICS CO LTD·Filed 1980·Granted Sep 7, 1982·1 cites·4 claims
- 2730US4663246AMagnetic recording mediumTDK CORP·Filed 1984·Granted May 5, 1987·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →