Inventor · disambiguated record
Hiroshi Kumon
Also filed as: KUMON HIROSHI
3 granted patents·157 citations·filing 1975–1976
74Inventor score
Files withTOYO KOGYO CO3
Top patents by PatentIndex Score
3 records- 0193US4023613AMethod of making a composite metal castingTOYO KOGYO CO·Filed 1976·Granted May 17, 1977·111 cites·5 claims
- 0290US4005991AMetal made of steel plate and aluminum materialTOYO KOGYO CO·Filed 1975·Granted Feb 1, 1977·42 cites·8 claims
- 0325US4042385ASintering method for making a high carbon ferrous sliding elementTOYO KOGYO CO·Filed 1975·Granted Aug 16, 1977·4 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →