P

Inventor

ISHIKAWA MASARU

JP53 patents
⚠️ This page may combine multiple inventors who share the name “ISHIKAWA MASARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PIONEER CORP

7 patents

NIPPON KOKAN KK

6 patents

TOYOTA MOTOR CO LTD

6 patents

JIDOSHA DENKI KOGYO KK

4 patents

TOMISAWA ISAO

4 patents

HITACHI METALS LTD

4 patents

PIONEER ELECTRONIC CORP

3 patents

NIPPON CATALYTIC CHEM IND

2 patents

ISHIKAWA MASARU

2 patents

HITACHI LTD

1 patent

HONDA MOTOR CO LTD

1 patent

NAT FOOD RES

1 patent

UNIV TOKYO

1 patent

TAKAHASHI TAKEHIRO

1 patent

FUJI XEROX CO LTD

1 patent

NITTO BOSEKI CO LTD

1 patent

TOKAI RIKA DENKI KK

1 patent

TACHIKURA MASAO

1 patent

MITSUBA CORP

1 patent

SAKAMOTO KAZUHIKO

1 patent

(unassigned)

1 patent

Showing the top 50 of 53 patents by PatentIndex Score.