Inventor

MATSUI RYOJI

JP18 patents

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

MATSUI RYOJI

JFE STEEL CORP

Electric-resistance-welded steel pipe for producing hollow stabilizer, hollow stabilizer, and method for producing same

Electric resistance welded steel pipe for producing hollow stabilizer, hollow stabilizer, and production methods for same

Electric-resistance-welded steel pipe or tube for hollow stabilizer

Electric-resistance-welded steel pipe or tube for hollow stabilizer and method of manufacturing same

Electric resistance welded steel pipe or tube

Electric resistance welded steel tubes for high-strength thin hollow stabilizers, and methods for manufacturing the same

High-strength welded steel pipe for airbag inflator and method for manufacturing the same

TORII & CO LTD

Novel amidine compound

Amino- or guanidino-1,2,3,4-tetrahydro-1-naphthoic esters

Amino- or guanidino-phenylpropionic acid derivatives

SUMITOMO RUBBER IND

Rubber composition for tires and tire

Tire rubber composition and tire

Rubber composition and pneumatic tire

MATSUI RYOJI

Bidirectional DC/DC converter and power conditioner

Contactless electricity-supplying device

YAMADA KAZUO

Power supply system

SHARP KK

Electric power supply system

SANYO ELECTRIC CO

Manufacturing method of micro-lens, manufacturing method of solid-state image pickup device and solid-state image pickup device