Inventor

OKAYASU YOSHINOBU

JP5 patents

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

TONEN CORP

2 patents

US6576584B1Jun 10, 2003

Method for producing hydrotreating catalyst

TONEN CORP42 citations92

US6436870B1Aug 20, 2002

Hydrotreating catalyst for hydrotreating hydrocarbon oils

TONEN CORP26 citations92

TONENGENERAL SEKIYU K K

1 patent

US6267874B1Jul 31, 2001

Hydrotreating catalyst and processes for hydrotreating hydrocarbon oil with the same

TONENGENERAL SEKIYU K K46 citations91

YOSHIDA TOSHIHIKO

1 patent

US4738729AApr 19, 1988

Amorphous silicon semiconductor solar cell

YOSHIDA TOSHIHIKO26 citations90

TOA NENRYO KOGYO KK

1 patent

US4742012AMay 3, 1988

Method of making graded junction containing amorphous semiconductor device

TOA NENRYO KOGYO KK15 citations72