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Inventor

Jun Maruyama

Inventor
Tokyo, JP

Overview

37→
Patents
1990–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 37 as inventor

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

F15Bprimary
F15BSystems acting by means of fluids in general15%
B41MPrinting, duplicating, marking, or copying processes14%
Y10TTechnical subjects covered by former us classification14%
E02FDredging7%
F16KValves7%
F16JPistons5%
F16CShafts4%
B60JWindows, windscreens, non-fixed roofs, doors, or similar devices for vehicles3%
B62DMotor vehicles3%
G09FDisplaying3%
PatentTitleYear
10,759,279Vehicle including instrument panel and interior member202010,386,839Mobile robot that emulates pedestrian walking behavior2019D0849621Motor vehicle20198,905,467'Sunroof apparatus'20148,592,341'Reversible thermosensitive recording medium and reversible thermosensitive recording member'20138,530,377'Thermoreversible recording medium, and thermoreversible recording member'20138,324,399'Heat resistance improver and reversible thermosensitive recording medium'20128,292,359'Roof apparatus for vehicle'20128,148,299'Reversible thermosensitive recording material, IC card, magnetic card and method for producing reversible thermosensitive recording material'20128,088,712'Reversible thermosensitive recording medium, reversible thermosensitive recording label, member, and image processing method'20127,946,592'Bearing seal'20117,914,209'Bearing seal and swing device'20117,748,907'Bearing seal and swing device'20107,513,690'Bearing seal and swing device'20096,975,066'Organic EL element'20056,596,669'Reversible two-color heat-sensitive recording material and recording method'20036,578,296'Hydraulically driven type working machine'20036,570,337'Luminous display unit'20036,291,117'Reversible heat-sensitive recording material'20016,184,180'Reversible heat-sensitive recording material'20015,983,942'Damper of hydraulic pilot valve'19995,862,665'Apparatus for preventing reverse rotation for hydraulic actuator'19995,845,680'Damper of hydraulic pilot valve'19985,819,800'Hydraulic pilot valve'19985,817,599'Reversible heat sensitive recording material'19985,657,860'Keyswitch having a reduced height and a keyboard using such a keyswitch'19975,622,206'Multiple valve unit for pressurized fluid supply system'19975,598,162'Removable audio remote controller for a microphone'19975,558,127'Hydraulic pilot valve'19965,533,334'Pressurized fluid supply system'19965,498,772'Reversible heat-sensitive recording material'19965,467,688'Operating valve device'19955,372,060'Hydraulic valve assembly'19945,251,660'Hydraulic pilot valve unit'19935,184,646'Pilot valve'19935,174,328'Pressure control valve'19924,901,214'Continuity angle controlled self-excited inverter circuit'1990

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2011Patents assigned to KOMATSU MFG CO LTD (16)· patent assignee history
1992–2013Based in Kanagawa, JP· patent location history
1993–2012Based in Yokohama, JP· patent location history
1993–1999Based in Kawasaki, JP· patent location history
1996–2003Patents assigned to MITSUBISHI PAPER MILLS LTD (5)· patent assignee history
1996–2003Based in Tokyo, JP· patent location history
2009–2011Based in Hiratsuka, JP· patent location history
2012–2013Patents assigned to MARUYAMA JUN (6)· patent assignee history
2012–2013Patents assigned to RICOH CO LTD (5)· patent assignee history
2012–2013Patents assigned to ARAI SATOSHI (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
KOMATSU MFG CO LTD161992–2011
MARUYAMA JUNself62012–2013
MITSUBISHI PAPER MILLS LTD51996–2003
RICOH CO LTD52012–2013
ARAI SATOSHI32012–2013
Locations
LocationPatentsSpan
Tokyo, JP71996–2003
Yokohama, JP61993–2012
Kawasaki, JP61993–1999
Kanagawa, JP41992–2013
Hiratsuka, JP32009–2011