P

Inventor

SUGIYAMA KATSUHIKO

JP21 patents
⚠️ This page may combine multiple inventors who share the name “SUGIYAMA KATSUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

TOYODA CHUO KENKYUSHO KK

6 patents

OJI NEPIA CO LTD

4 patents

SUGIYAMA KATSUHIKO

3 patents

SEIKO EPSON CORP

2 patents

PROCTER & GAMBLE

1 patent

SAKANO KATSUSHI

1 patent

OJI PAPER CO

1 patent

JAPAN ABSORBENT TECH INST

1 patent

NEW OJI PAPER CO LTD

1 patent

SATO AKITO

1 patent