Inventor · disambiguated record
Masahisa Sobue
Also filed as: SOBUE MASAHISA
15 granted patents·335 citations·filing 1987–2004
94Inventor score
Top patents by PatentIndex Score
15 records- 0193US6846765B2Silicon nitride powder, silicon nitride sintered body, sintered silicon nitride substrate, and circuit board and thermoelectric module comprising such sintered silicon nitride substrateHITACHI METALS LTD·Filed 2001·Granted Jan 25, 2005·91 cites·7 claims
- 0289US5208502ASliding current collector made of ceramicsHITACHI LTD·Filed 1992·Granted May 4, 1993·73 cites·8 claims
- 0374US7031166B2Silicon nitride powder, silicon nitride sintered body, sintered silicon nitride substrate, and circuit board and thermoelectric module comprising such sintered silicon nitride substrateHITACHI METALS LTD·Filed 2004·Granted Apr 18, 2006·19 cites·4 claims
- 0471US5130055ACeramic composite and process for the production thereofYASUTOMI YOSHIYUKI·Filed 1990·Granted Jul 14, 1992·22 cites·12 claims
- 0569US4941251ARollers for rolling millsHITACHI LTD·Filed 1989·Granted Jul 17, 1990·17 cites·35 claims
- 0668US4839949ARollers for rolling millsHITACHI LTD·Filed 1987·Granted Jun 20, 1989·17 cites·19 claims
- 0767US5252273ASlip casting methodHITACHI LTD·Filed 1991·Granted Oct 12, 1993·18 cites·14 claims
- 0861US5378417AProcess for producing ceramic compositionsHITACHI LTD·Filed 1989·Granted Jan 3, 1995·13 cites·13 claims
- 0960US5085806AConductive material and process for preparing the sameHITACHI LTD·Filed 1989·Granted Feb 4, 1992·16 cites·4 claims
- 1056US5271871AConductive material and process for preparing the sameHITACHI LTD·Filed 1991·Granted Dec 21, 1993·11 cites·10 claims
- 1151US5316987ACeramic composite and process for production thereofHITACHI LTD·Filed 1992·Granted May 31, 1994·10 cites·4 claims
- 1247US5200373AHigh strength composite ceramic structure and process for producing the sameHITACHI LTD·Filed 1991·Granted Apr 6, 1993·9 cites·11 claims
- 1342US5266860ACommutatorHITACHI LTD·Filed 1992·Granted Nov 30, 1993·10 cites·21 claims
- 1440US5138221AInorganically insulated heater, and cathode ray tube and air flow sensor using the sameHITACHI LTD·Filed 1990·Granted Aug 11, 1992·7 cites·22 claims
- 1532US5403674AConductive material and process for preparing the sameHITACHI LTD·Filed 1993·Granted Apr 4, 1995·2 cites·7 claims
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