Inventor · disambiguated record
Hirohiko Ohtsubo
Also filed as: OHTSUBO HIROHIKO
6 granted patents·1 pending application·148 citations·filing 1989–2004
84Inventor score
Top patents by PatentIndex Score
7 records- 0189US7404832B2Method for producing cubic boron nitride abrasive grainsSHOWA DENKO KK·Filed 2002·Granted Jul 29, 2008·42 cites·4 claims
- 0286US5000760ACBN abrasive-grains, method for producing the same, and grinding wheelSHOWA DENKA K K·Filed 1989·Granted Mar 19, 1991·62 cites·30 claims
- 0381US6627168B1Method for growing diamond and cubic boron nitride crystalsSHOWA DENKO KK·Filed 2000·Granted Sep 30, 2003·35 cites·12 claims
- 0453US7097678B2Metal-coated cubic boron nitride abrasive grain, production method thereof, and resin bonded grinding wheelSHOWA DENKO KK·Filed 2004·Granted Aug 29, 2006·6 cites·16 claims
- 0550US7244406B2Method for producing cubic boron nitrideSHOWA DENKO KK·Filed 2003·Granted Jul 17, 2007·2 cites·13 claims
- 0650US7214359B2Cubic boron nitride, catalyst for synthesizing cubic boron nitride, and method for producing cubic boron nitrideSHOWA DENKO KK·Filed 2004·Granted May 8, 2007·1 cites·16 claims
- 0734US2005081456A1Cubic boron nitride abrasive grain, production method therefor, and grinding wheel and coated abrasive using the sameSHOWA DENKO KK·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →