Inventor · disambiguated record
Ryo Akiyama
Also filed as: AKIYAMA RYO
22 granted patents·3 pending applications·316 citations·filing 1978–2025
95Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD8HITACHI LTD5MITSUBISHI HEAVY IND LTD3JAPAN SCIENCE & TECH AGENCY2KOBAYASHI SHU2
Top patents by PatentIndex Score
25 records- 0194US5250787AOptical-disk playback apparatus, method of optical-disk playback and combined memory medium, having control programs stored in the optical-disc and specified by barcodes stored in a barcode memory mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1989·Granted Oct 5, 1993·64 cites·8 claims
- 0291US5382776ACombination of an optical-disk and barcode memory medium for use with an optical disk playback apparatus, having control programs stored in the optical-disk and specified by barcodes stored in the barcode memory mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Jan 17, 1995·81 cites·1 claims
- 0378US8613186B2Two-shaft gas turbineKOGANEZAWA TOMOMI·Filed 2009·Granted Dec 24, 2013·17 cites·15 claims
- 0475US9217368B2Gas turbine, exhaust diffuser, and method of modifying gas turbine plantMYOREN CHIHIRO·Filed 2010·Granted Dec 22, 2015·6 cites·3 claims
- 0574US4211967AMotor speed adjusting apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1978·Granted Jul 8, 1980·26 cites·9 claims
- 0672US8110519B2Polymer-supported metal cluster compositionKOBAYASHI SHU·Filed 2005·Granted Feb 7, 2012·3 cites·12 claims
- 0771US5117410AOptical disc apparatus with rapid and stable accessing capabilityMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted May 26, 1992·18 cites·8 claims
- 0869US8318967B2Polysilane-supported transition metal catalyst for liquid phase reactionKOBAYASHI SHU·Filed 2007·Granted Nov 27, 2012·2 cites·7 claims
- 0967US7452181B2Plant facilityHITACHI LTD·Filed 2006·Granted Nov 18, 2008·9 cites·4 claims
- 1065US6334756B1Turbine rotor, cooling method of turbine blades of the rotor and gas turbine with the rotorHITACHI LTD·Filed 2000·Granted Jan 1, 2002·19 cites·20 claims
- 1165US2025262546A1Program, information processing apparatus, method, and systemCYGAMES INC·Filed 2025·Application pending·0 cites
- 1261US6514038B2Turbine rotor, cooling method of turbine blades of the rotor and gas turbine with the rotorHITACHI LTD·Filed 2001·Granted Feb 4, 2003·16 cites·7 claims
- 1360US9863315B2Gas turbine and operation method of gas turbineMITSUBISHI HITACHI POWER SYS·Filed 2013·Granted Jan 9, 2018·2 cites·2 claims
- 1457US12221923B2Gas turbine cogeneration system and method of operating the sameMITSUBISHI HEAVY IND LTD·Filed 2023·Granted Feb 11, 2025·0 cites·8 claims
- 1554US12258902B2Gas turbine cogeneration system, method of operating gas turbine cogeneration system, and method of modifying gas turbine cogeneration systemMITSUBISHI HEAVY IND LTD·Filed 2023·Granted Mar 25, 2025·0 cites·9 claims
- 1653US6655153B2Gas turbine shaft and heat shield cooling arrangementHITACHI LTD·Filed 2001·Granted Dec 2, 2003·12 cites·1 claims
- 1753US4360767AMotor speed control apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1980·Granted Nov 23, 1982·14 cites·6 claims
- 1852US6860110B2Gas turbine shaft and heat shield cooling arrangementHITACHI LTD·Filed 2003·Granted Mar 1, 2005·11 cites·5 claims
- 1951US2024240594A1Fuel supply system and fuel supply method for gas turbine cogeneration systemMITSUBISHI HEAVY IND LTD·Filed 2023·Application pending·0 cites
- 2048US5073881AOptical disc apparatus with rapid and stable accessing capabilityMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1988·Granted Dec 17, 1991·6 cites·9 claims
- 2145US7470646B2Polymer incarcerated Lewis acid metal catalystJAPAN SCIENCE & TECH AGENCY·Filed 2005·Granted Dec 30, 2008·0 cites·19 claims
- 2243US7732638B2Method of amidocarbonylation reactionJAPAN SCIENCE & TECH AGENCY·Filed 2005·Granted Jun 8, 2010·0 cites·4 claims
- 2343US4809094AMethod of accessing data recorded on a disk at a high speedMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1987·Granted Feb 28, 1989·5 cites·24 claims
- 2440US2025233966A1Image correction apparatus, image correction method, and programNIPPON TELEGRAPH & TELEPHONE·Filed 2021·Application pending·0 cites
- 2536US4864553AApparatus for controlling rotation of a run length limited code modulated information recording mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1988·Granted Sep 5, 1989·5 cites·3 claims
Join the waitlist — get patent alerts
Get an alert when Ryo Akiyama 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 →