Inventor · disambiguated record
Hifumi Yanagisawa
Also filed as: YANAGISAWA HIFUMI
9 granted patents·69 citations·filing 1974–1983
87Inventor score
Technology areasH01H
Files withMEIDENSHA ELECTRIC MFG CO LTD9
Top patents by PatentIndex Score
9 records- 0167US4434331AVacuum power interrupting deviceMEIDENSHA ELECTRIC MFG CO LTD·Filed 1981·Granted Feb 28, 1984·14 cites·12 claims
- 0265US4471184AVacuum interrupterMEIDENSHA ELECTRIC MFG CO LTD·Filed 1982·Granted Sep 11, 1984·13 cites·20 claims
- 0356US4429197AVacuum power interrupting deviceMEIDENSHA ELECTRIC MFG CO LTD·Filed 1980·Granted Jan 31, 1984·8 cites·6 claims
- 0452US4417110AVacuum interrupterMEIDENSHA ELECTRIC MFG CO LTD·Filed 1981·Granted Nov 22, 1983·8 cites·13 claims
- 0552US4293748AVacuum circuit interrupter electrodesMEIDENSHA ELECTRIC MFG CO LTD·Filed 1978·Granted Oct 6, 1981·7 cites·9 claims
- 0648US4450327AVacuum interrupterMEIDENSHA ELECTRIC MFG CO LTD·Filed 1981·Granted May 22, 1984·7 cites·17 claims
- 0748US4421961AVacuum circuit breakerMEIDENSHA ELECTRIC MFG CO LTD·Filed 1981·Granted Dec 20, 1983·7 cites·8 claims
- 0833US4465991AOperating device for effecting opening and closing operation of a vacuum interrupter with an electromagnet incorporated thereinMEIDENSHA ELECTRIC MFG CO LTD·Filed 1983·Granted Aug 14, 1984·2 cites·2 claims
- 0933US3941960AVacuum power circuit breakerMEIDENSHA ELECTRIC MFG CO LTD·Filed 1974·Granted Mar 2, 1976·3 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →