Inventor

OHTSUKA SUSUMU

JP9 patents

⚠️ This page may combine multiple inventors who share the name “OHTSUKA SUSUMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

4 patents

US5121266AJun 9, 1992

Magnetic recording/reproducing apparatus

HITACHI LTD10 citations71

US5260843ANov 9, 1993

Magnetic recording and reproducing apparatus with individual correction of amplitude variations of recording currents supplied to plural rotary magnetic heads

HITACHI LTD5 citations61

US5272576ADec 21, 1993

Magnetic recording and reproducing apparatus with recording inhibition operation

HITACHI LTD3 citations60

US5253127AOct 12, 1993

Video tape recorder having a special demagnetizing function

HITACHI LTD1 citations49

SUMITOMO CHEMICAL CO

3 patents

US5041679AAug 20, 1991

Beta-hydroxyketone and its production

SUMITOMO CHEMICAL CO5 citations72

US6861566B2Mar 1, 2005

Process for producing 1-chloro-4-arylbutane

SUMITOMO CHEMICAL CO2 citations59

US5101076AMar 31, 1992

β-hydroxyketone and its production

SUMITOMO CHEMICAL CO0 citations51

NIPPON STEEL CORP

1 patent

US5560857AOct 1, 1996

Solution for cleaning silicon semiconductors and silicon oxides

NIPPON STEEL CORP76 citations93

ONO PHARMACEUTICAL CO

1 patent

US7094914B2Aug 22, 2006

Process for producing chromone compound

ONO PHARMACEUTICAL CO1 citations48