Inventor · disambiguated record
Yasumasa Koakutsu
Also filed as: KOAKUTSU YASUMASA
5 granted patents·179 citations·filing 1985–1990
83Inventor score
Technology areasG02B
Files withHITACHI LTD5
Top patents by PatentIndex Score
5 records- 0186US4756593AConnector comprising a plug having a built-in optoelectronic conversion means and a socketHITACHI LTD·Filed 1986·Granted Jul 12, 1988·71 cites·5 claims
- 0286US4720630AActive optical connector including an electronic circuit board and an optical fiberHITACHI LTD·Filed 1986·Granted Jan 19, 1988·68 cites·8 claims
- 0357US4741595AOptical transmission deviceHITACHI LTD·Filed 1985·Granted May 3, 1988·20 cites·7 claims
- 0443US4715673AOptical switchHITACHI LTD·Filed 1986·Granted Dec 29, 1987·10 cites·12 claims
- 0536US5052768ADevice for retaining wire-like optical wave-guideHITACHI LTD·Filed 1990·Granted Oct 1, 1991·10 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →