P

Inventor

HIRAYAMA MASAO

JP14 patents
⚠️ This page may combine multiple inventors who share the name “HIRAYAMA MASAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MEIJI SEIKA KAISHA

6 patents

TOKYO GAS CO LTD

2 patents

OSAKA GAS CO LTD

2 patents

MICROBIAL CHEM RES FOUND

1 patent

TAKAGI MASAMICHI

1 patent

MATSUMOTO HITOSHI

1 patent

HIRAYAMA MASAO

1 patent