Inventor

TSURU EIJI

JP29 patents

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

TSURU EIJI

BRIDGESTONE CORP

Rubber crawler

Rubber crawler

Rubber crawler

Metallic core of rubber track

Elastic endless crawler and method of manufacturing the same

Rubber crawler

Elastic endless crawler and method of producing the same

Rubber crawler

Rubber crawler

Rubber crawler and its manufacture method

NIPPON STEEL CORP

Joint for steel pipe having high galling resistance and surface treatment method thereof

High-strength steel pipe excellent in formability and burst resistance

Fe-based alloy foil for liquid-phase diffusion bonding of Fe-based materials by enabling bonding in oxidizing atmospheres

Oil well pipe threaded joint

Pipe joint

Threaded joint for oil-well pipe

UOE steel pipe excellent in collapse strength and method of production thereof

Oil country tubular goods excellent in collapse characteristics after expansion and method of production thereof

UOE steel pipe excellent in collapse strength and method of production thereof

TSURU EIJI

Liquid phase diffusion bonded pipe joint

High strength welded steel tube superior in hydrogen embrittlement cracking resistance of weld metal and method of production of same

KISSEI PHARMACEUTICAL

Hemifumarate of a pyrazole derivative

Crystal polymorphism of aminoethylphenoxyacetic acid derivative

NIPPON STEEL & SUMITOMO METAL CORP

Pipeline and manufacturing method thereof

Pipeline and manufacturing method thereof

(unassigned)

Alloy foil for liquid-phase diffusion bonding bondable in oxidizing atmosphere

SAWAMURA MITSURU

Oil country tubular goods with dual phase structure and producing method thereof

TAKEUCHI HIDEKI

Monosebacate of pyrazole derivative

ASAHI HITOSHI

Steel plate or steel pipe with small occurrence of Bauschinger effect and methods of production of same