Inventor

SUGIYAMA MASAYOSHI

9 patents

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

SONY CORP

2 patents

US4612244ASep 16, 1986

Magnetic recording medium

SONY CORP29 citations91

US4656089AApr 7, 1987

Magnetic recording medium

SONY CORP10 citations73

MITSUBISHI MONSANTO CHEM

2 patents

US4698195AOct 6, 1987

Process for preparing biaxially drawn polyamide films

MITSUBISHI MONSANTO CHEM31 citations89

US4634840AJan 6, 1987

Method of heating thermoplastic resin sheet or film

MITSUBISHI MONSANTO CHEM12 citations69

HITACHI LTD

2 patents

US4298881ANov 3, 1981

Semiconductor device with double moat and double channel stoppers

HITACHI LTD21 citations81

US3934331AJan 27, 1976

Method of manufacturing semiconductor devices

HITACHI LTD3 citations61

STAR MFG CO

1 patent

US7551748B2Jun 23, 2009

Earphone

STAR MFG CO134 citations97

KOHJIN CO

1 patent

US3985849AOct 12, 1976

Preparation of biaxially oriented polyvinyl alcohol film

KOHJIN CO40 citations86

MINNESOTA MINING & MFG

1 patent

US4061707ADec 6, 1977

Process and apparatus for heat setting biaxially oriented tubular polyethylene terephthalate films

MINNESOTA MINING & MFG26 citations75