Loading inventors, assignments & file history…
Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST
Recorded Nov 1, 2021
From: NARIKAWA, RYU; MORIKI, HIDEKAZU; SAKAMOTO, HIROSHI; TANAKA, HIROAKI
To: HITACHI CONSTRUCTION MACHINERY CO., LTD.
Reel/Frame 057980/0128 →
Priority Claims (1)
JP 2019-114014
· Jun 19, 2019
· national
Continuity (1)
References Cited (21)
US 5490081A
· Kuromoto et al.
· 1996
[cited by applicant]
US 20220106769A1
· Takaoka
· 2022
[cited by examiner]
CN 105518222B
· 2018
[cited by applicant]
CN 107949676A
· 2018
[cited by applicant]
JP 05321290A
· 1993
[cited by applicant]
JP 2017210817A
· 2017
[cited by applicant]
JP 2017226972A
· 2017
[cited by applicant]
JP 6752193B2
· 2020
[cited by examiner]
WO 2014167718A1
· 2014
[cited by applicant]
WO 2015181990A1
· 2015
[cited by applicant]
WO 2017168686A1
· 2017
[cited by applicant]
Chinese Office Action received in corresponding Chinese Application No. 202080042344.2 dated Jul. 21, 2022.
[cited by applicant]
Korean Office Action received in corresponding Korean Application No. 10-2021-7038748 dated Apr. 12, 2023.
[cited by applicant]
International Search Report of PCT/JP2020/023628 dated Sep. 8, 2020.
[cited by applicant]
International Preliminary Report on Patentability of PCT/JP2020/023628 dated Dec. 30, 2021.
[cited by applicant]