Inventor · disambiguated record
Eiichi Katayama
Also filed as: KATAYAMA EIICHI
4 granted patents·63 citations·filing 1989–2013
76Inventor score
Top patents by PatentIndex Score
4 records- 0170US4981403ASpeed-up spindle unitSHOWA SEIKI KK·Filed 1989·Granted Jan 1, 1991·31 cites·7 claims
- 0262US9408307B2Device housing packageKYOCERA CORP·Filed 2013·Granted Aug 2, 2016·2 cites·8 claims
- 0357US5033921ATraction drive tool adapterKOYO SEIKO CO·Filed 1990·Granted Jul 23, 1991·15 cites·10 claims
- 0457US4960405ATraction drive spindle deviceKOYO SEIKO CO·Filed 1989·Granted Oct 2, 1990·15 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →