Inventor · disambiguated record
Tsutomu Kihara
Also filed as: KIHARA TSUTOMU
10 granted patents·61 citations·filing 1991–2004
88Inventor score
Files withKAWAI MUSICAL INSTR MFG CO4NIPPON OIL CO LTD4NIPPON MITSUBISHI OIL CORP1NIPPON STEEL CORP1
Top patents by PatentIndex Score
10 records- 0167US6660383B2Multifibrous carbon fiber and utilization thereofNIPPON MITSUBISHI OIL CORP·Filed 2001·Granted Dec 9, 2003·7 cites·21 claims
- 0253US7678977B2Repetition lever of grand pianoKAWAI MUSICAL INSTR MFG CO·Filed 2004·Granted Mar 16, 2010·4 cites·11 claims
- 0348US5968435AProcess for manufacturing pitch-type carbon fiberNIPPON STEEL CORP·Filed 1998·Granted Oct 19, 1999·8 cites·5 claims
- 0443US5528969ADamper unit for a pianoKAWAI MUSICAL INSTR MFG CO·Filed 1995·Granted Jun 25, 1996·11 cites·11 claims
- 0543US5181979AProcess for preparing carbon/carbon compositeNIPPON OIL CO LTD·Filed 1991·Granted Jan 26, 1993·7 cites·11 claims
- 0641US5932820ADamper lever for grand pianoKAWAI MUSICAL INSTR MFG CO·Filed 1997·Granted Aug 3, 1999·9 cites·4 claims
- 0741US5192471AProcess for preparing carbon/carbon compositeNIPPON OIL CO LTD·Filed 1991·Granted Mar 9, 1993·5 cites·12 claims
- 0835US5186873AProcess for preparing carbon/carbon compositeNIPPON OIL CO LTD·Filed 1991·Granted Feb 16, 1993·5 cites·12 claims
- 0933US5646359ASilencing method and apparatus for pianosKAWAI MUSICAL INSTR MFG CO·Filed 1995·Granted Jul 8, 1997·4 cites·18 claims
- 1033US5470558AProcess for producing pitch-based carbon fibers superior in compression characteristicsNIPPON OIL CO LTD·Filed 1994·Granted Nov 28, 1995·1 cites·10 claims
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