Inventor

YAMAMOTO AKIFUMI

JP4 patents

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

TOKYO GAS CO LTD

2 patents

US4883557ANov 28, 1989

Method for lining pipe lines with a pressurized gas

TOKYO GAS CO LTD24 citations91

US4948452AAug 14, 1990

Apparatus for lining pipe lines including liquid seal means

TOKYO GAS CO LTD16 citations80

DAINIPPON INK & CHEMICALS

1 patent

US6103788AAug 15, 2000

Curable resin composition for use in water-based coating materials

DAINIPPON INK & CHEMICALS31 citations89

DAIDO METAL CO

1 patent

US10302124B2May 28, 2019

Half bearing and sliding bearing

DAIDO METAL CO2 citations69