P

Inventor

YOSHIDA RISABURO

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

TOYO INK MFG CO

3 patents
US4199548AApr 22, 1980

Thermally diffusible composites

TOYO INK MFG CO42 citations91
US4093424AJun 6, 1978

Thermogenic compositions

TOYO INK MFG CO26 citations81
US4223074ASep 16, 1980

Process for producing metal-boehemite laminates

TOYO INK MFG CO20 citations78

TOPPAN PRINTING CO LTD

2 patents
US5501350AMar 26, 1996

Process for producing printed wiring board

TOPPAN PRINTING CO LTD91 citations89
US5264049ANov 23, 1993

Method of manufacturing a multi-layered wiring board

TOPPAN PRINTING CO LTD4 citations57

HISAMITSU PHARMACEUTICAL CO

1 patent
US4205685AJun 3, 1980

Thermogenic sheet-combined poultices

HISAMITSU PHARMACEUTICAL CO56 citations93