Inventor · disambiguated record
Yoshito Koyama
Also filed as: KOYAMA YOSHITO
22 granted patents·12 pending applications·152 citations·filing 1987–2020
94Inventor score
Top patents by PatentIndex Score
34 records- 0184US8536911B1PLL circuit, method of controlling PLL circuit, and digital circuitFUJITSU LTD·Filed 2013·Granted Sep 17, 2013·7 cites·7 claims
- 0282US8183940B2Temperature control deviceKOYAMA YOSHITO·Filed 2009·Granted May 22, 2012·21 cites·4 claims
- 0376US6300841B1Atomic oscillator utilizing a high frequency converting circuit and an active, low-integral-number multiplierFUJITSU LTD·Filed 2000·Granted Oct 9, 2001·25 cites·27 claims
- 0474US6812800B2Atomic oscillatorFUJITSU LTD·Filed 2002·Granted Nov 2, 2004·17 cites·10 claims
- 0572US8436665B2Digital PLL circuit and clock generating methodNAKAMUTA KOJI·Filed 2012·Granted May 7, 2013·4 cites·17 claims
- 0672US7417477B2PLL circuitFUJITSU LTD·Filed 2007·Granted Aug 26, 2008·8 cites·8 claims
- 0767US7368962B2Clock supply deviceFUJITSU LTD·Filed 2006·Granted May 6, 2008·6 cites·5 claims
- 0860US11607949B2ShovelSUMITOMO CONSTRUCTION MACHINERY CO LTD·Filed 2020·Granted Mar 21, 2023·0 cites·13 claims
- 0960US8040192B2Power supply voltage output circuitFUJITSU LTD·Filed 2009·Granted Oct 18, 2011·4 cites·5 claims
- 1058US6801091B2Oscillator controller and atomic oscillatorFUJITSU LTD·Filed 2002·Granted Oct 5, 2004·6 cites·14 claims
- 1156US8149033B2Phase control device, phase-control printed board, and control methodYOSHIZAWA YOSHIHARU·Filed 2010·Granted Apr 3, 2012·2 cites·16 claims
- 1255US7958378B2Power supply device having load detection function and communication apparatus provided with the power supply deviceFUJITSU LTD·Filed 2007·Granted Jun 7, 2011·1 cites·5 claims
- 1353US5751193ARubidium atomic oscillator with laser diode wavelength adjustmentFUJITSU LTD·Filed 1996·Granted May 12, 1998·19 cites·14 claims
- 1453US4770404AMethod and device for loading and unloading a film on and out of a rotary drum in the exposure/recording apparatusDAINIPPON SCREEN MFG·Filed 1987·Granted Sep 13, 1988·10 cites·12 claims
- 1552US6570455B2Rubidium atom oscillator generating a stable frequencyFUJITSU LTD·Filed 2001·Granted May 27, 2003·8 cites·9 claims
- 1651US8488062B2Analog-digital converting apparatus and clock signal output apparatusNAKAMUTA KOJI·Filed 2010·Granted Jul 16, 2013·1 cites·8 claims
- 1746US8089308B2Phase controlling apparatus, phase-control printed board, and controlling methodYOSHIZAWA YOSHIHARU·Filed 2009·Granted Jan 3, 2012·2 cites·11 claims
- 1846US7664217B2Digital PLL circuitFUJITSU LTD·Filed 2005·Granted Feb 16, 2010·1 cites·3 claims
- 1946US2008184046A1Power supply device and communication apparatusFUJITSU LTD·Filed 2007·Application pending·0 cites
- 2042US8847643B2Semiconductor device and information processing apparatusFUJITSU LTD·Filed 2013·Granted Sep 30, 2014·0 cites·12 claims
- 2141US5712597ARubidium atom oscillator with temperature stabilized frequency outputFUJITSU LTD·Filed 1996·Granted Jan 27, 1998·10 cites·10 claims
- 2241US2008180867A1Power supply device and communication apparatusFUJITSU LTD·Filed 2007·Application pending·0 cites
- 2338US2009295490A1Dds circuit and electronic device having the sameFUJITSU LTD·Filed 2009·Application pending·0 cites
- 2437US8543845B2Method for suppressing a voltage fluctuation applying to a load by a second power section with the same or opposite voltage polarityKOYAMA YOSHITO·Filed 2010·Granted Sep 24, 2013·0 cites·6 claims
- 2537US7355457B2Frequency synthesizerFUJITSU LTD·Filed 2005·Granted Apr 8, 2008·0 cites·19 claims
- 2635US2013063183A1Signal generating apparatus and method of generating signalNAKANE YOSHINORI·Filed 2012·Application pending·0 cites
- 2734US2008204105A1Power supply device, signal output apparatus and power supply methodFUJITSU LTD·Filed 2007·Application pending·0 cites
- 2833US2008184045A1Power supply device and communication apparatusFUJITSU LTD·Filed 2007·Application pending·0 cites
- 2933US2010171477A1Power supply device and electronic apparatusFUJITSU LTD·Filed 2010·Application pending·0 cites
- 3033US2010176779A1Power supply device and electronic apparatusFUJITSU LTD·Filed 2010·Application pending·0 cites
- 3133US2010176780A1Power supply device and electronic apparatusFUJITSU LTD·Filed 2010·Application pending·0 cites
- 3233US2008184054A1Power supply device and communication apparatusFUJITSU LTD·Filed 2007·Application pending·0 cites
- 3331US2011136450A1Power circuit and radio communication circuit using same and method of operating a circuitFUJITSU LTD·Filed 2010·Application pending·0 cites
- 3429US2001035795A1Rubidium atom oscillatorFiled 2001·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Yoshito Koyama files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →