P

Inventor

OTSUKA TATSUO

JP8 patents
⚠️ This page may combine multiple inventors who share the name “OTSUKA TATSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SHOWA ALUMINUM CORP

3 patents
US4806436AFeb 21, 1989

Substrate for amorphous silicon solar cells

SHOWA ALUMINUM CORP129 citations97
US4957159ASep 18, 1990

Aluminum heat exchanger provided with fins having hydrophilic coating

SHOWA ALUMINUM CORP11 citations71
US5431802AJul 11, 1995

Cylinder tube and process for producing same

SHOWA ALUMINUM CORP14 citations65

KOYO SEIKO CO

3 patents
US6550567B2Apr 22, 2003

Electric power steering apparatus

KOYO SEIKO CO47 citations95
US6769507B2Aug 3, 2004

Electric power steering apparatus

KOYO SEIKO CO36 citations91
US6708796B2Mar 23, 2004

Electric power steering apparatus

KOYO SEIKO CO43 citations91

SHOWA ALUMINIUM CO LTD

2 patents
US4852791AAug 1, 1989

Method for making corrosion resistance heat exchangers

SHOWA ALUMINIUM CO LTD7 citations73
US4962880AOct 16, 1990

Method of forming a heat exchanger with components comprising an aluminum alloy containing reduced amounts of magnesium

SHOWA ALUMINIUM CO LTD4 citations62