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Inventor

Seiichi Yamaguchi

Inventor
Yokohama, JP

Overview

14→
Patents
1978–2020
Patent span
Electricity
Primary field (CPC H)

Patents· 14 as inventor

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

H04Bprimary
H04BTransmission23%
H03DDemodulation or transference of modulation from one carrier to another10%
H03JTuning resonant circuits10%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes7%
H04LTransmission of digital information, e.g. telegraphic communication7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
A63FCard, board, or roulette games3%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles3%
B60WConjoint control of vehicle sub-units of different type or different function3%
C25DProcesses for the electrolytic or electrophoretic production of coatings3%
PatentTitleYear
10,569,173Non-transitory storage medium having stored therein information processing program, information processing system, information processing apparatus, and information processing method20207,463,578'Transmission parameter control device'20087,428,534'Information retrieval system and information retrieval method using network'20087,389,838'Hybrid powered vehicle'20087,346,544'Method for selling items using a network'20086,956,432'Transmission output correcting apparatus'20056,175,746'Multiband mobile unit communication apparatus'20016,094,564'Mobile communication apparatus operable in different formats and pairing I-F band pass filter type with I-F amplifier characteristics'20006,032,032'Mobile radio communication apparatus'20006,006,080'Receiving mixer circuit for mobile radio transceiver designed to operate with multiple modulation modes and multiple frequency bands'19995,966,666'Multiple-band mobile transceiver having a smaller number of local oscillators'19995,852,784'Multiband mobile unit communication apparatus'19985,768,321'Automatic frequency control unit which detects a frame pattern in a phase modulation signal'19984,119,516'Continuous electroplating apparatus'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978Patents assigned to KOITO MFG CO LTD (1)· patent assignee history
1998–2005Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (7)· patent assignee history
1998–2008Patents assigned to FUJITSU LTD (2)· patent assignee history
1998–2005Based in Yokohama, JP· patent location history
1998–2008Based in Kawasaki, JP· patent location history
2008Patents assigned to YAMAHA CORP (2)· patent assignee history
2008Patents assigned to HINO MOTORS LTD (1)· patent assignee history
2008Based in Hamamatsu, JP· patent location history
2008Based in Tokyo, JP· patent location history
2020Based in Kyoto, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD71998–2005
FUJITSU LTD21998–2008
YAMAHA CORP22008
HINO MOTORS LTD12008
KOITO MFG CO LTD11978
Locations
LocationPatentsSpan
Yokohama, JP61998–2005
Kawasaki, JP21998–2008
Kyoto, JP12020
Hamamatsu, JP12008
Tokyo, JP12008