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Inventor

Sotaro Tanaka

Inventor
Ibaraki, JP

Overview

9→
Patents
1985–2021
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 9 as inventor

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

E02Fprimary
E02FDredging29%
F15BSystems acting by means of fluids in general13%
F16HGearing8%
B25JManipulators4%
B41JTypewriters4%
B60KArrangement or mounting of propulsion units or of transmissions in vehicles4%
B60YIndexing scheme relating to aspects cross-cutting vehicle technology4%
D05CEmbroidering4%
D05DIndexing scheme associated with subclasses d05b and d05c, relating to sewing, embroidering and tufting4%
D06BTreating textile materials using liquids, gases or vapours4%
PatentTitleYear
11,119,722Movable body control apparatus and recording medium202110,974,511Liquid discharge device, and liquid discharge apparatus and dyeing apparatus including same20216,502,499'Hydraulic recovery system for construction machine and construction machine using the same'20036,244,048'Hydraulique drive device'20015,839,397'Engine cooling system and construction machine'19984,571,941'Hydraulic power system'19864,561,250'Hydraulic drive system having a plurality of prime movers'19854,534,268'Hydraulic fluid circuit of hydraulic shovel'19854,504,185'Hydraulic circuit of hydraulic power shovel'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–2003Patents assigned to HITACHI CONSTRUCTION MACHINERY (7)· patent assignee history
1985–1986Based in Ibaraki, JP· patent location history
1998–2003Based in Ushiku, JP· patent location history
2021Patents assigned to RICOH CO LTD (1)· patent assignee history
2021Patents assigned to SHARP KK (1)· patent assignee history
2021Patents assigned to TANAKA SHINYA (1)· patent assignee history
2021Patents assigned to YAMASHITA HIROYUKI (1)· patent assignee history
2021Based in Sakai, JP· patent location history
2021Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HITACHI CONSTRUCTION MACHINERY71985–2003
RICOH CO LTD12021
SHARP KK12021
TANAKA SHINYAself12021
YAMASHITA HIROYUKI12021
Locations
LocationPatentsSpan
Ibaraki, JP41985–1986
Ushiku, JP31998–2003
Sakai, JP12021
Kanagawa, JP12021