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Inventor

Ryohei Tanaka

Inventor
Osaka, JP

Overview

22→
Patents
1984–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 22 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H03Hprimary
H03HImpedance networks, e.g. resonant circuits13%
H01JElectric discharge tubes or discharge lamps11%
C08LCompositions of macromolecular compounds9%
G01RMeasuring electric variables9%
H05HPlasma technique9%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds7%
G06FElectric digital data processing7%
H01BCables7%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients4%
A63HToys, e.g. tops, dolls, hoops or building blocks2%
PatentTitleYear
11,113,569Information processing device, information processing method, and computer program product202110,841,438Guide device, control system, and recording medium20209,372,248'Method for evaluating reliability of electrical power measuring device'20168,775,190'Voice-operated control circuit and method for using same'20148,738,314'High frequency measurement apparatus and calibration method for high frequency measurement apparatus'20148,686,711'High-frequency measuring device and high-frequency measuring device calibration method'20148,510,071'High-frequency measuring device and high-frequency measuring device calibration method'20138,203,859'High frequency device with variable frequency and variable load impedance matching'20127,915,563'Arc detector for plasma processing system'20117,702,702'Signal processing device for computing phase difference between alternating current signals'20107,492,817'Adaptive digital filter'20097,489,145'Plasma processing system'20097,489,206'High-frequency power device and method for controlling high-frequency power'20097,292,047'High-frequency power source'20076,928,532'Logic integrated circuit, and recording medium readable by a computer, which stores a source of CPU core on said logic integrated circuit'20055,999,575'Channel separating filter apparatus, PSK demodulator apparatus and PSK receiver apparatus each equipped with channel separating filter apparatus'19995,185,388'Epoxy resin electrical encapsulation composition'19935,149,730'Epoxy resin composition'19925,141,974'Epoxy resin composition'19924,584,331'Polyphenylene ether resin composition'19864,530,952'Polyphenylene ether composition improved in processability'19854,433,325'Optical vehicle detection system'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–2016Based in Osaka, JP· patent location history
1985–1986Patents assigned to MITSUBISHI PETROCHEMICAL CO (2)· patent assignee history
1992Patents assigned to SHELL OIL CO (2)· patent assignee history
1992–1993Based in Yokkaichi, JP· patent location history
1993–2016Patents assigned to TANAKA RYOHEI (7)· patent assignee history
1999–2016Patents assigned to DAIHEN CORP (13)· patent assignee history
1999–2005Based in Takarazuka, JP· patent location history
2014Patents assigned to IBUKI YOSHIFUMI (1)· patent assignee history
2020Based in Yokohama, JP· patent location history
2021Based in Kawasaki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
DAIHEN CORP131999–2016
TANAKA RYOHEIself71993–2016
MITSUBISHI PETROCHEMICAL CO21985–1986
SHELL OIL CO21992
IBUKI YOSHIFUMI12014
Locations
LocationPatentsSpan
Osaka, JP121984–2016
Yokkaichi, JP31992–1993
Takarazuka, JP21999–2005
Kawasaki, JP12021
Yokohama, JP12020