Inventor · disambiguated record
Hiroharu Wakabayashi
Also filed as: WAKABAYASHI HIROHARU
23 granted patents·584 citations·filing 1977–1997
97Inventor score
Top patents by PatentIndex Score
23 records- 0195US4257675AOptical-fiber submarine cable and manufacturing method thereofKOKUSAI DENSHIN DENWA CO LTD·Filed 1979·Granted Mar 24, 1981·39 cites·2 claims
- 0290US5406368AMethod and apparatus for chromatic dispersion measurementsKOKUSAI DENSHIN DENWA CO LTD·Filed 1993·Granted Apr 11, 1995·73 cites·3 claims
- 0384US4211920AFault location system for optical repeating pathsKOKUSAI DENSHIN DENWA CO LTD·Filed 1979·Granted Jul 8, 1980·35 cites·3 claims
- 0483US5042039AEr-doped optical fiber laser deviceKOKUSAI BENSHIN KABUSHIKI KAIS·Filed 1989·Granted Aug 20, 1991·35 cites·3 claims
- 0578US4278850AMonitoring system for optical transmission line repeatersKOKUSAI DENSHIN DENWA CO LTD·Filed 1979·Granted Jul 14, 1981·28 cites·8 claims
- 0677US5138621APumping light source drive system for an optical amplifierKOKUSAI DENSHIN DENWA CO LTD·Filed 1991·Granted Aug 11, 1992·36 cites·12 claims
- 0773US4270029ASelection system for digital signal repeatersKOKUSAI DENSHIN DENWA CO LTD·Filed 1979·Granted May 26, 1981·22 cites·7 claims
- 0871US4720162ADevice for switching from one light source to anotherKOKUSAI DENSHIN DENWA CO LTD·Filed 1986·Granted Jan 19, 1988·36 cites·8 claims
- 0970US6115156ADemultiplexer device for wavelength-division multiplexed optical fiber communicationKOKUSAI DENSHIN DENWA CO LTD·Filed 1997·Granted Sep 5, 2000·34 cites·4 claims
- 1068US4313224AMonitoring system of an optical power in an optical repeaterKOKUSAI DENSHIN DENWA CO LTD·Filed 1980·Granted Jan 26, 1982·27 cites·5 claims
- 1168US4300239AOptical repeater monitoring systemKOKUSAI DENSHIN DENWA CO LTD·Filed 1980·Granted Nov 10, 1981·27 cites·2 claims
- 1263US4710976AOptical repeater monitoring systemKOKUSAI DENSHIN DENWA CO LTD·Filed 1985·Granted Dec 1, 1987·28 cites·4 claims
- 1363US4201959AAutomatic equalization systemKOKUSAI DENSHIN DENWA CO LTD·Filed 1977·Granted May 6, 1980·15 cites·6 claims
- 1462US5430795AOptical transmitter with the signal light of reduced degree of polarization and optical depolarizing circuitKOKUSAI DENSHIN DENWA CO LTD·Filed 1993·Granted Jul 4, 1995·31 cites·8 claims
- 1560US4304489ASystem for measuring an optical loss in a single mode optical fiberKOKUSAI DENSHIN DENWA CO LTD·Filed 1980·Granted Dec 8, 1981·16 cites·7 claims
- 1659US5162936AApparatus for monitoring the operation of an optical repeaterKOKUSAI DENSHIN DENWA CO LTD·Filed 1991·Granted Nov 10, 1992·28 cites·6 claims
- 1752US5471333AOptical communication systemKOKUSAI DENSHIN DENWA CO LTD·Filed 1993·Granted Nov 28, 1995·21 cites·3 claims
- 1846US4411520ALight dispersion measuring apparatusKOKUSAI DENSHIN DENWA CO LTD·Filed 1981·Granted Oct 25, 1983·10 cites·3 claims
- 1944US5539557ASupervisory signal receiving method and apparatusKOKUSAI DENSHIN DENWA CO LTD·Filed 1994·Granted Jul 23, 1996·13 cites·3 claims
- 2040US5140452ALong-distance high-speed optical communication schemeKOKUSAI DENSHIN DENWA CO LTD·Filed 1991·Granted Aug 18, 1992·10 cites·7 claims
- 2139US4320968AFault location system in an optical fiber transmission systemKOKUSAI DENSHIN DENWA CO LTD·Filed 1980·Granted Mar 23, 1982·7 cites·1 claims
- 2238US4933990AOptical privacy communication system in two-way optical transmission systemKOKUSAI DENSHIN DENWA CO LTD·Filed 1988·Granted Jun 12, 1990·7 cites·4 claims
- 2338US4408831AOptical switchKOKUSAI DENSHIN DENWA CO LTD·Filed 1981·Granted Oct 11, 1983·6 cites·7 claims
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