P

Inventor

YOKOTA KEIICHI

JP10 patents
⚠️ This page may combine multiple inventors who share the name “YOKOTA KEIICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOKYO ELECTRON LTD

4 patents
US5404111AApr 4, 1995

Probe apparatus with a swinging holder for an object of examination

TOKYO ELECTRON LTD146 citations97
US4943767AJul 24, 1990

Automatic wafer position aligning method for wafer prober

TOKYO ELECTRON LTD40 citations91
US5416592AMay 16, 1995

Probe apparatus for measuring electrical characteristics of objects

TOKYO ELECTRON LTD30 citations90
US4966520AOct 30, 1990

Method of positioning objects to be measured

TOKYO ELECTRON LTD18 citations71

SUMIKIN CHEMICAL

3 patents
US6054609AApr 25, 2000

Method of separating isomers of nitrotoluic acid

SUMIKIN CHEMICAL2 citations62
US5550284AAug 27, 1996

Production method for alkoxynaphthalenecarboxylic acid

SUMIKIN CHEMICAL4 citations60
US5416256AMay 16, 1995

Process for manufacturing 5-hydroxyisophthalic acid

SUMIKIN CHEMICAL0 citations51

TEL YAMANISHI KK

1 patent
US5412329AMay 2, 1995

Probe card

TEL YAMANISHI KK71 citations92

AIR WATER INC

1 patent
US10059654B2Aug 28, 2018

Composition containing 3-chloro-4-methoxybenzylamine hydrochloride, and method for producing same

AIR WATER INC0 citations51

AIR WATER CHEMICAL INC

1 patent
US6768022B2Jul 27, 2004

Method for producing thiosalicylic acid

AIR WATER CHEMICAL INC0 citations44