Inventor · disambiguated record
Shigeo Sakai
Also filed as: SAKAI SHIGEO
14 granted patents·487 citations·filing 1974–1999
94Inventor score
Files withSEIKO INSTR INC6MITSUBISHI HEAVY IND LTD2FUJITSU LTD1MITSUBISHI JUKOGYO KABUSHIKI KAISHA1OKI ELECTRIC IND CO LTD1
Top patents by PatentIndex Score
14 records- 0191US5517757AMethod of manufacturing a stacked heat exchangerMITSUBISHI HEAVY IND LTD·Filed 1994·Granted May 21, 1996·79 cites·2 claims
- 0291US4009337AStored program control type electronic exchange systemOKI ELECTRIC IND CO LTD·Filed 1974·Granted Feb 22, 1977·120 cites·5 claims
- 0390US5417280AStacked heat exchanger and method of manufacturing the sameMITSUBISHI HEAVY IND LTD·Filed 1993·Granted May 23, 1995·77 cites·12 claims
- 0489USD361529SWristwatchSEIKO INSTR INC·Filed 1994·Granted Aug 22, 1995·33 cites·1 claims
- 0583USD364820SWristwatchSEIKO INSTR INC·Filed 1994·Granted Dec 5, 1995·27 cites·1 claims
- 0682US6295251B1Timepiece dial plate and timepiece dial plate manufacturing methodSEIKO KABUSHIKI KAISHA·Filed 1999·Granted Sep 25, 2001·43 cites·17 claims
- 0776USD364821SWristwatchSEIKO INSTR INC·Filed 1994·Granted Dec 5, 1995·19 cites·1 claims
- 0876US5280054ACoating composition for use in hydrophilic treatment comprising an organic-inorganic composite reaction productMITSUBISHI JUKOGYO KABUSHIKI KAISHA·Filed 1992·Granted Jan 18, 1994·40 cites·17 claims
- 0962USD364822SWristwatchSEIKO INSTR INC·Filed 1994·Granted Dec 5, 1995·11 cites·1 claims
- 1055US5191579ARing network switching control deviceFUJITSU LTD·Filed 1990·Granted Mar 2, 1993·20 cites·17 claims
- 1152US4264373AMethod of refining beet juiceTOYO SODA MFG CO LTD·Filed 1979·Granted Apr 28, 1981·8 cites·12 claims
- 1248USD407326SWatchcaseSEIKO INSTR INC·Filed 1997·Granted Mar 30, 1999·6 cites·1 claims
- 1348USD278039SPocket watchSEIKO INSTR & ELECTRONICS·Filed 1982·Granted Mar 19, 1985·4 cites·1 claims
- 1429USD410864SInflatable bladder for wristwatchSEIKO INSTR INC·Filed 1997·Granted Jun 15, 1999·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →