Inventor · disambiguated record
Kei Ishii
Also filed as: ISHII KEI
18 granted patents·3 pending applications·294 citations·filing 1985–2014
95Inventor score
Files withHITACHI POWDERED METALS10DENSO CORP4NISSAN MOTOR4HITACHI CHEMICAL CO LTD1HITACHI POWDERED METAL CO LTD1
Top patents by PatentIndex Score
21 records- 0192US6340377B1High-temperature wear-resistant sintered alloyHITACHI POWDERED METALS·Filed 2000·Granted Jan 22, 2002·42 cites·12 claims
- 0285US7309465B2Sintered sprocket for silent chain and production method thereforNISSAN MOTOR·Filed 2006·Granted Dec 18, 2007·9 cites·2 claims
- 0382US5949003AHigh-temperature wear-resistant sintered alloyNISSAN MOTOR·Filed 1997·Granted Sep 7, 1999·40 cites·13 claims
- 0482US5049183ASintered machine part and methodHITACHI POWDERED METALS·Filed 1990·Granted Sep 17, 1991·32 cites·14 claims
- 0579US4648903AIron base sintered, wear-resistant materials and method for producing the sameHITACHI POWDERED METALS·Filed 1985·Granted Mar 10, 1987·25 cites·6 claims
- 0678US4778522AWear resistant iron-base sintered alloyNISSAN MOTOR·Filed 1987·Granted Oct 18, 1988·26 cites·8 claims
- 0771US7556864B2Sintered gearHITACHI POWDERED METALS·Filed 2003·Granted Jul 7, 2009·16 cites·7 claims
- 0869US7273527B2Production method for powdered coreDENSO CORP·Filed 2006·Granted Sep 25, 2007·4 cites·4 claims
- 0969US5682588AMethod for producing ferrous sintered alloy having quenched structureHITACHI POWDERED METALS·Filed 1996·Granted Oct 28, 1997·22 cites·3 claims
- 1066US5529602ASintered iron alloy resistant to abrasion at high temperature and method of manufacturing the sameHITACHI POWDERED METALS·Filed 1995·Granted Jun 25, 1996·21 cites·11 claims
- 1161US7156743B2Mechanical fuse and method of manufacturing the sameDENSO CORP·Filed 2001·Granted Jan 2, 2007·3 cites·10 claims
- 1256US5753005ASource powder for wear-resistant sintered materialHITACHI POWDERED METALS·Filed 1997·Granted May 19, 1998·14 cites·1 claims
- 1354US7211158B2Production method for powdered coreDENSO CORP·Filed 2003·Granted May 1, 2007·4 cites·7 claims
- 1450US7078112B2Mechanical fuse and production method for the sameDENSO CORP·Filed 2004·Granted Jul 18, 2006·1 cites·5 claims
- 1550US5819154AManufacturing process of sintered iron alloy improved in machinability, mixed powder for manufacturing, modification of iron alloy and iron alloy productHITACHI POWDERED METAL CO LTD·Filed 1996·Granted Oct 6, 1998·14 cites·16 claims
- 1650US2016221078A1Aluminum-based porous body and method for manufacturing sameHITACHI CHEMICAL CO LTD·Filed 2014·Application pending·0 cites
- 1749US7041149B2Sintered sprocket for silent chain and production method thereforHITACHI POWDERED METALS·Filed 2004·Granted May 9, 2006·1 cites·7 claims
- 1847US5967110AFe-based sintered alloy manufacturing process, Fe-based sintered alloy manufactured through thereof and bearing capHITACHI POWDERED METALS·Filed 1998·Granted Oct 19, 1999·11 cites·14 claims
- 1943US6228138B1Good machinability Fe-based sintered alloy and process of manufacture thereforHITACHI POWDERED METALS·Filed 1999·Granted May 8, 2001·9 cites·7 claims
- 2037US2005028641A1Sintered sprocket for silent chain and production method thereforNISSAN MOTOR·Filed 2004·Application pending·0 cites
- 2134US2005265883A1Dust ccre and process for producing the sameISHII KEI·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →