Inventor · disambiguated record
Yoshifumi Yatsurugi
Also filed as: YATSURUGI YOSHIFUMI
13 granted patents·316 citations·filing 1974–2001
93Inventor score
Files withKOMATSU DENSHI KINZOKU KK4KOMATSU MFG CO LTD4ADVANCED SILICON MATERIALS INC2ADVANCED SILCON MATERIALS INC1KOMATSU ELECTRONICS METALS CO1
Top patents by PatentIndex Score
13 records- 0194US4150168AMethod and apparatus for manufacturing high-purity silicon rodsKOMATSU MFG CO LTD·Filed 1978·Granted Apr 17, 1979·69 cites·6 claims
- 0290US4147814AMethod of manufacturing high-purity silicon rods having a uniform sectional shapeKOMATSU MFG CO LTD·Filed 1978·Granted Apr 3, 1979·50 cites·4 claims
- 0388US3982912AMethod for preparation of an improved K-A type zeolite and for separation by adsorption polar and non-polar moleculesYATSURUGI YOSHIFUMI·Filed 1974·Granted Sep 28, 1976·37 cites·4 claims
- 0485US6503563B1Method of producing polycrystalline silicon for semiconductors from saline gasKOMATSU MFG CO LTD·Filed 2001·Granted Jan 7, 2003·27 cites·3 claims
- 0578US4565913AMethod for the disintegration of silicon for semiconductorKOMATSU DENSHI KINZOKU KK·Filed 1984·Granted Jan 21, 1986·28 cites·6 claims
- 0676US5478396AProduction of high-purity polycrystalline silicon rod for semiconductor applicationsADVANCED SILICON MATERIALS INC·Filed 1994·Granted Dec 26, 1995·31 cites·8 claims
- 0763US5545387AProduction of high-purity polycrystalline silicon rod for semiconductor applicationsADVANCED SILCON MATERIALS INC·Filed 1995·Granted Aug 13, 1996·21 cites·15 claims
- 0854USRE36936EProduction of high-purity polycrystalline silicon rod for semiconductor applicationsADVANCED SILICON MATERIALS INC·Filed 1998·Granted Oct 31, 2000·15 cites·15 claims
- 0952US6106617AApparatus for feeding raw material into a quartz crucibleKOMATSU DENSHI KINZOKU KK·Filed 1998·Granted Aug 22, 2000·14 cites·12 claims
- 1048US4857270AProcess for manufacturing silicon-germanium alloysKOMATSU DENSHI KINZOKU KK·Filed 1988·Granted Aug 15, 1989·14 cites·3 claims
- 1142US6623801B2Method of producing high-purity polycrystalline siliconKOMATSU MFG CO LTD·Filed 2001·Granted Sep 23, 2003·0 cites·4 claims
- 1239US6007621AApparatus for feeding raw material into a quartz crucible and method of feeding the sameKOMATSU DENSHI KINZOKU KK·Filed 1998·Granted Dec 28, 1999·7 cites·16 claims
- 1332US6019842AMethod and apparatus for loading raw material into a quartz crucibleKOMATSU ELECTRONICS METALS CO·Filed 1998·Granted Feb 1, 2000·3 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Yoshifumi Yatsurugi 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 →