P

Inventor

KOYAMA TOSHIHIRO

US16 patents
⚠️ This page may combine multiple inventors who share the name “KOYAMA TOSHIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOSHIBA KK

5 patents
US5126947AJun 30, 1992

Method of controlling plate flatness and device therefor

TOSHIBA KK27 citations92
US6724917B1Apr 20, 2004

Control apparatus for ventilating a tunnel

TOSHIBA KK24 citations88
US6246956B1Jun 12, 2001

Vehicle traffic control apparatus

TOSHIBA KK43 citations87
US5040395AAug 20, 1991

Looper control system for continuous rolling mill

TOSHIBA KK13 citations72
US4665729AMay 19, 1987

Thickness control method and system for a single-stand/multi-pass rolling mill

TOSHIBA KK3 citations61

KAKEN PHARMA CO LTD

3 patents
US5756822AMay 26, 1998

Aminoethanethiol derivative

KAKEN PHARMA CO LTD0 citations48
US5672597ASep 30, 1997

Acetamide derivative

KAKEN PHARMA CO LTD0 citations48
US5190959AMar 2, 1993

Piperidine compounds which have useful pharmaceutical activity

KAKEN PHARMA CO LTD1 citations47

TOPCON CORP

2 patents
US7721452B2May 25, 2010

Shape measuring apparatus for eyeglasses

TOPCON CORP13 citations83
US7052135B2May 30, 2006

Ophthalmologic apparatus

TOPCON CORP7 citations72

HITACHI LTD

2 patents
US5570831ANov 5, 1996

Pneumatic static guide for a tape

HITACHI LTD14 citations73
US5050019ASep 17, 1991

Method for automatic continuous changing of cartridge-type magnetic tapes

HITACHI LTD4 citations60

MITSUBISHI ELECTRIC CORP

1 patent
US4827452AMay 2, 1989

Semiconductor memory including a selectively disabled redunancy circuit

MITSUBISHI ELECTRIC CORP30 citations92

OM CORP

1 patent
US5887615AMar 30, 1999

Check valve of fuel tank

OM CORP27 citations86

TOKYO SHIBAURA ELECTRIC CO

1 patent
US4507946AApr 2, 1985

Method and system for controlling an interstand tension in a continuous rolling mill

TOKYO SHIBAURA ELECTRIC CO14 citations68

HITACHI MAXELL

1 patent
US6989218B2Jan 24, 2006

Composite electrode material and method for producing the same, and electrochemical element using the same

HITACHI MAXELL2 citations59