Inventor · disambiguated record
Kazuo Nakata
Also filed as: ICHIKAWA AKIRA · NAKATA KAZUO
20 granted patents·459 citations·filing 1976–1998
96Inventor score
Files withHITACHI LTD6ISHIHARA MINING & CHEMICAL CO5CANON KK2ISHIHARA SANGYO KAISHA2NIPPON TELEGRAPH & TELEPHONE2
Top patents by PatentIndex Score
20 records- 0192US5585032AFerromagnetic fine powder for magnetic recordingISHIHARA SANGYO KAISHA·Filed 1995·Granted Dec 17, 1996·103 cites·9 claims
- 0287US4283601APreprocessing method and device for speech recognition deviceHITACHI LTD·Filed 1979·Granted Aug 11, 1981·38 cites·6 claims
- 0385US4653098AMethod and apparatus for extracting speech pitchHITACHI LTD·Filed 1983·Granted Mar 24, 1987·63 cites·7 claims
- 0483US4589015AColor television camera with bias light device featuring reduced color shadingCANON KK·Filed 1983·Granted May 13, 1986·33 cites·8 claims
- 0575US4211897AMultifrequency signal receiving systemHITACHI LTD·Filed 1978·Granted Jul 8, 1980·12 cites·12 claims
- 0673US4953952AColor liquid crystal displaying panelsSUMITOMO CHEMICAL CO·Filed 1988·Granted Sep 4, 1990·35 cites·6 claims
- 0772US4088838AVoice response systemHITACHI LTD·Filed 1976·Granted May 9, 1978·32 cites·15 claims
- 0869US4720862AMethod and apparatus for speech signal detection and classification of the detected signal into a voiced sound, an unvoiced sound and silenceHITACHI LTD·Filed 1983·Granted Jan 19, 1988·35 cites·9 claims
- 0969US4539261AProcess for producing magnetic powder and productISHIHARA MINING & CHEMICAL CO·Filed 1983·Granted Sep 3, 1985·16 cites·21 claims
- 1064US4395119AMethod for automatic, non-destructive measurement of eccentricity of coated electrodesKOBE STEEL LTD·Filed 1980·Granted Jul 26, 1983·20 cites·8 claims
- 1154US4414245AProcess for producing cobalt containing ferromagnetic iron oxidesISHIHARA MINING & CHEMICAL CO·Filed 1982·Granted Nov 8, 1983·9 cites·8 claims
- 1253US5204779AZoom lens capable of being adjusted for trackingCANON KK·Filed 1991·Granted Apr 20, 1993·17 cites·6 claims
- 1351US4340781ASpeech analysing deviceHITACHI LTD·Filed 1980·Granted Jul 20, 1982·17 cites·3 claims
- 1450US6149321AFilm drawing device and a drawing plate for use in the film drawing deviceNORITSU KOKI CO LTD·Filed 1998·Granted Nov 21, 2000·3 cites·20 claims
- 1546US5246609AProcess for preparing ferromagnetic fine particles for magnetic recordingISHIHARA SANGYO KAISHA·Filed 1992·Granted Sep 21, 1993·7 cites·22 claims
- 1643US4501774AProcess for the production of cobalt-containing magnetic iron oxide powderISHIHARA MINING & CHEMICAL CO·Filed 1982·Granted Feb 26, 1985·5 cites·12 claims
- 1736US4486467AProcess for producing cobalt-containing magnetic iron oxide powderISHIHARA MINING & CHEMICAL CO·Filed 1982·Granted Dec 4, 1984·3 cites·17 claims
- 1834US4560544AProcess for the preparation of acicular α-FeOOH for magnetic recording materialsISHIHARA MINING & CHEMICAL CO·Filed 1984·Granted Dec 24, 1985·3 cites·7 claims
- 1927US4349699ASpeech synthesizerNIPPON TELEGRAPH & TELEPHONE·Filed 1980·Granted Sep 14, 1982·4 cites·2 claims
- 2026US4491958ASpeech synthesizerNIPPON TELEGRAPH & TELEPHONE·Filed 1981·Granted Jan 1, 1985·4 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →