Inventor
KOIZUMI TOSHIAKI
JP22 patents
⚠️ This page may combine multiple inventors who share the name “KOIZUMI TOSHIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI KOKI KK
11 patentsUS9793847B2Oct 17, 2017
Electric power tool
HITACHI KOKI KK7 citations84
US10886764B2Jan 5, 2021
Power tool
HITACHI KOKI KK4 citations73
US10205198B2Feb 12, 2019
Power tool and battery pack
HITACHI KOKI KK2 citations73
US9768713B2Sep 19, 2017
Electric tool
HITACHI KOKI KK2 citations73
US10744633B2Aug 18, 2020
Power Tool
HITACHI KOKI KK2 citations72
US10505473B2Dec 10, 2019
Electric tool
HITACHI KOKI KK4 citations72
US10307841B2Jun 4, 2019
Power tool
HITACHI KOKI KK3 citations72
US5477154ADec 19, 1995
An EDP checker including a matching circuit
HITACHI KOKI KK12 citations71
US10536056B2Jan 14, 2020
Electric power tool
HITACHI KOKI KK1 citations62
US9769990B2Sep 26, 2017
Power tool
HITACHI KOKI KK1 citations52
US11123846B2Sep 21, 2021
Electric tool
HITACHI KOKI KK0 citations50
PIONEER ELECTRONIC CORP
4 patentsUS4949328AAug 14, 1990
Disk player for playing both sides of a disk or multiple disks without ejection thereof and a disk player with a disk being played that overlaps disks stored in a storage receptor
PIONEER ELECTRONIC CORP27 citations91
US4845700AJul 4, 1989
Front loading disc player
PIONEER ELECTRONIC CORP42 citations91
US4695995ASep 22, 1987
Front loading disk player with improved disk sensor positioning
PIONEER ELECTRONIC CORP24 citations81
US5084854AJan 28, 1992
Optical disk reproducing apparatus
PIONEER ELECTRONIC CORP17 citations73
KOKI HOLDINGS CO LTD
3 patentsHITACHI LTD
2 patentsUS7452798B2Nov 18, 2008
Semiconductor chip mounting substrate, a method of producing the same, and a method of mounting a semiconductor chip
HITACHI LTD5 citations71
US7476977B2Jan 13, 2009
Semiconductor chip mounting substrate, a method of producing the same, and a method of mounting a semiconductor chip
HITACHI LTD1 citations50