Inventor

Ryouhei Yamashita

Inventor

Tsuchiura, JP

Overview

7→

Patents

2015–2019

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 7 as inventor

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

E02Fprimary

E02FDredging17%

F02DControlling combustion engines13%

F15BSystems acting by means of fluids in general13%

Y02TClimate change mitigation technologies related to transportation13%

B60YIndexing scheme relating to aspects cross-cutting vehicle technology9%

F02PIgnition, other than compression ignition, for internal-combustion engines9%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles4%

B60LPropulsion of electrically-propelled vehicles4%

B60WConjoint control of vehicle sub-units of different type or different function4%

B66FHoisting, lifting, hauling or pushing, not otherwise provided for, e.g. devices which apply a lifting or pushing force directly to the surface of a load4%

PatentTitleYear

10,458,097Hybrid work machine2019 10,316,866Construction machine2019 10,030,355Hydraulic control system for construction machine2018 9,188,066'Speed reduction method for hand-carried engine-driven working machine'2015 9,175,456'Hydraulic control device for working vehicle'2015 9,115,670'Fuel control method for hand-carried engine-driven working machine'2015 9,062,621'Fuel control method for handheld engine operating machine'2015

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2015Patents assigned to IIDA DENKI KOGYO KK (3)· patent assignee history

2015Patents assigned to ZAMA JAPAN CO LTD (3)· patent assignee history

2015Patents assigned to ANDOU MASAAKI (1)· patent assignee history

2015Patents assigned to HITACHI CONSTRUCTION MACHINERY (1)· patent assignee history

2015–2019Based in Tsuchiura, JP· patent location history

2015Based in Tokyo, JP· patent location history

2018–2019Patents assigned to HITACHI CONSTRUCTION MACH CO (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HITACHI CONSTRUCTION MACH CO	3	2018–2019
IIDA DENKI KOGYO KK	3	2015
ZAMA JAPAN CO LTD	3	2015
ANDOU MASAAKI	1	2015
HITACHI CONSTRUCTION MACHINERY	1	2015

Locations

Location	Patents	Span
Tsuchiura, JP	4	2015–2019
Tokyo, JP	3	2015