Inventor

Nobutaka Yamaguchi

Inventor

Kanagawa, JP

Overview

1977–2021

Patent span

General tagging of new technological developments

Primary field (CPC Y)

Patents· 49 as inventor

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

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer28%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests26%

Y10TTechnical subjects covered by former us classification26%

F16DCouplings for transmitting rotation6%

F16HGearing4%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles3%

B24DTools for grinding, buffing or sharpening1%

B60YIndexing scheme relating to aspects cross-cutting vehicle technology1%

F15BSystems acting by means of fluids in general1%

B60LPropulsion of electrically-propelled vehicles1%

PatentTitleYear

11,098,769Clutch mechanism and piston2021 10,890,217Hydraulic clutch device2021 10,801,596Power transmission device2020 10,731,746Power transmission apparatus2020 10,731,714Power transmission apparatus2020 10,710,462Driving device2020 10,670,088Hydraulic clutch device2020 10,663,014Hydraulic clutch device2020 10,626,926Power transmission apparatus and lubricating structure of power transmission apparatus2020 9,239,066'Hydraulic controller of driving force distribution device'2016 4,840,842'Abrasive tape'1989 4,822,672'Abasive tape'1989 4,767,644'Method of making abrasive tape'1988 4,764,423'Abrasive tape'1988 4,756,960'Abrasive tape'1988 4,752,524'Abrasive tape'1988 4,734,325'Magnetic recording medium'1988 4,728,569'Magnetic recording medium'1988 4,696,858'Magnetic recording medium'1987 4,686,139'Magnetic recording medium'1987 4,663,217'Magnetic recording medium'1987 4,650,720'Magnetic recording medium'1987 4,649,072'Magnetic recording medium'1987 4,647,503'Magnetic recording medium including magnetic layer with carbon black particles and a fatty acid ester'1987 4,647,501'Magnetic recording medium'1987 4,626,469'Magnetic recording material'1986 4,619,855'Magnetic recording medium with electron beam cured magnetic layer'1986 4,617,226'Magnetic recording medium'1986 4,601,946'Magnetic recording medium'1986 4,579,778'Magnetic recording medium'1986 4,551,386'Magnetic recording materials'1985 4,546,038'Magnetic recording medium'1985 4,544,601'Magnetic recording medium'1985 4,499,121'Method of preparing a magnetic recording medium with a calendering treatment'1985 4,497,864'Magnetic recording medium'1985 4,474,848'Magnetic recording medium'1984 4,448,842'Magnetic recording medium'1984 4,444,842'Magnetic recording medium'1984 4,427,738'Magnetic recording medium'1984 4,425,400'Magnetic recording medium'1984 4,420,532'Magnetic recording medium'1983 4,411,966'Magnetic recording medium'1983 4,356,232'Method for producing magnetic recording medium'1982 4,273,797'Method of detecting pinholes in a magnetic recording medium'1981 4,202,927'Magnetic recording medium'1980 4,187,345'Magnetic recording medium'1980 4,171,406'Magnetic recording medium'1979 4,132,827'Magnetic recording substance'1979 4,002,804'Magnetic recording material'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1989Patents assigned to FUJI PHOTO FILM CO LTD (39)· patent assignee history

1977–1988Based in Odawara, JP· patent location history

1984–1989Based in Kanagawa, JP· patent location history

2016–2021Patents assigned to HONDA MOTOR CO LTD (10)· patent assignee history

2016Patents assigned to HAYASHI KENICHIRO (1)· patent assignee history

2016Patents assigned to MURAKAMI RYUICHI (1)· patent assignee history

2016Patents assigned to SUGO YASUHIKO (1)· patent assignee history

2016–2021Based in Wako, JP· patent location history

2020Based in Saitama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
FUJI PHOTO FILM CO LTD	39	1977–1989
HONDA MOTOR CO LTD	10	2016–2021
HAYASHI KENICHIRO	1	2016
MURAKAMI RYUICHI	1	2016
SUGO YASUHIKO	1	2016

Locations

Location	Patents	Span
Kanagawa, JP	25	1984–1989
Odawara, JP	14	1977–1988
Wako, JP	5	2016–2021
Saitama, JP	5	2020