Inventor · disambiguated record
Katsuhiro Tsukiyama
Also filed as: TSUKIYAMA KATSUHIRO
2 granted patents·1 pending application·24 citations·filing 2001–2006
60Inventor score
Top patents by PatentIndex Score
3 records- 0172US6605166B2Method for manufacturing high strength bolt excellent in resistance to delayed fracture and to relaxationKOBE STEEL LTD·Filed 2001·Granted Aug 12, 2003·11 cites·10 claims
- 0270US7976258B2Screw and screw fastening structureSAGA TEKKOHSHO CO LTD·Filed 2006·Granted Jul 12, 2011·13 cites·1 claims
- 0335US2007187003A1High-strength bolt superior in delayed fracture and resistance and relaxation resistanceKOBE SEKO SHO KK·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →