Assignee
HITACHI TOOL ENG
JP·15 granted patents·546 citations·filing 1992–2008
Top patents by PatentIndex Score
15 records- 0197US7537822B2Hard-coated memberHITACHI TOOL ENG·Filed 2006·Granted May 26, 2009·41 cites·9 claims
- 0296US6586122B2Multilayer-coated cutting toolHITACHI TOOL ENG·Filed 2001·Granted Jul 1, 2003·125 cites·16 claims
- 0395US7166155B2Hard film and hard film-coated toolHITACHI TOOL ENG·Filed 2003·Granted Jan 23, 2007·58 cites·17 claims
- 0490US6846135B2Radius end mill having radius edge enhanced in resistance to chipping and fractureHITACHI TOOL ENG·Filed 2003·Granted Jan 25, 2005·62 cites·30 claims
- 0589US7368182B2Hard coating and its formation method, and hard-coated toolHITACHI TOOL ENG·Filed 2005·Granted May 6, 2008·9 cites·24 claims
- 0689US7354640B2Hard coating and its production methodHITACHI TOOL ENG·Filed 2005·Granted Apr 8, 2008·9 cites·8 claims
- 0789US6884006B2Insert-exchangeable, rotary tool and throwaway insertHITACHI TOOL ENG·Filed 2002·Granted Apr 26, 2005·47 cites·12 claims
- 0886US7661912B2Tool having damperHITACHI TOOL ENG·Filed 2006·Granted Feb 16, 2010·29 cites·9 claims
- 0983US6254984B1Members with multi-layer coatingsHITACHI TOOL ENG·Filed 1999·Granted Jul 3, 2001·62 cites·15 claims
- 1079US6413023B1Indexable type rotary milling tool and indexable insertHITACHI TOOL ENG·Filed 2000·Granted Jul 2, 2002·25 cites·11 claims
- 1179US5322394AHighly stiff end millHITACHI TOOL ENG·Filed 1992·Granted Jun 21, 1994·43 cites·5 claims
- 1278US6790543B2Hard layer-coated toolHITACHI TOOL ENG·Filed 2002·Granted Sep 14, 2004·19 cites·8 claims
- 1376US7909549B2Small-diameter deep hole drill and a micro deep hole drilling methodHITACHI TOOL ENG·Filed 2008·Granted Mar 22, 2011·13 cites·14 claims
- 1474US7435487B2Hard film and hard film-coated toolHITACHI TOOL ENG·Filed 2006·Granted Oct 14, 2008·1 cites·6 claims
- 1546US6387552B1TiCN-based cermetHITACHI TOOL ENG·Filed 2000·Granted May 14, 2002·3 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when HITACHI TOOL ENG files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →