Inventor · disambiguated record
Koichi Katakura
Also filed as: KATAKURA KOICHI
12 granted patents·229 citations·filing 1989–1997
92Inventor score
Files withSANKYO SEIKI SEISAKUSHO KK12
Top patents by PatentIndex Score
12 records- 0182US5047677AAluminum disk motor having thermal compensation and magnetic sealingSANKYO SEIKI SEISAKUSHO KK·Filed 1989·Granted Sep 10, 1991·53 cites·3 claims
- 0274US5241229AMagnetic disc drive motorSANKYO SEIKI SEISAKUSHO KK·Filed 1992·Granted Aug 31, 1993·40 cites·4 claims
- 0363US5744881ASpindle motor, and its rotor yoke manufacturing methodSANKYO SEIKI SEISAKUSHO KK·Filed 1995·Granted Apr 28, 1998·27 cites·12 claims
- 0460US5268604AArmature of a small motor employing an insulating holder having a plurality of sectionsSANKYO SEIKI SEISAKUSHO KK·Filed 1992·Granted Dec 7, 1993·25 cites·6 claims
- 0557US5414575AMagnetic disc drive device with hub and clamper assembly for reducing post-assembly machiningSANKYO SEIKI SEISAKUSHO KK·Filed 1993·Granted May 9, 1995·11 cites·4 claims
- 0651US5686771AElectric motorSANKYO SEIKI SEISAKUSHO KK·Filed 1995·Granted Nov 11, 1997·17 cites·4 claims
- 0751US5475274ADriving motorSANKYO SEIKI SEISAKUSHO KK·Filed 1993·Granted Dec 12, 1995·17 cites·21 claims
- 0847US5877918ADisk driving device with hub flange secured between yoke and drive magnetSANKYO SEIKI SEISAKUSHO KK·Filed 1997·Granted Mar 2, 1999·14 cites·21 claims
- 0941US5666219ARotary polygon mirror type light deflecting systemSANKYO SEIKI SEISAKUSHO KK·Filed 1996·Granted Sep 9, 1997·9 cites·8 claims
- 1036US6038205ASpindle motorSANKYO SEIKI SEISAKUSHO KK·Filed 1997·Granted Mar 14, 2000·9 cites·7 claims
- 1136US5661588ARotary polygon mirror type light deflecting systemSANKYO SEIKI SEISAKUSHO KK·Filed 1995·Granted Aug 26, 1997·5 cites·4 claims
- 1231US5644084AMethod of measuring natural frequency of motorSANKYO SEIKI SEISAKUSHO KK·Filed 1995·Granted Jul 1, 1997·2 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →