Idemitsu Kosan Company, Limited

Idemitsu Petrochemical Co., Ltd.

Santoku Corporation

Masakatsu Kimura

Yoshikatsu Seino

Minoru Senga

Tsuyoshi Ota

Ryo Aburatani

Tadatoshi Murota

Takayoshi Kambara

Tadanori Junke

Masatoshi Kusatsu

Osamu Nakamura

A method for producing a solid electrolyte including step of bringing the following into contact with each other in a solvent having a solubility parameter of 9.0 or more: an alkali metal sulfide; one or two or more sulfur compounds selected from phosphorus sulfide, germanium sulfide, silicon sulfide and boron sulfide; and a halogen compound.

Method for producing solid electrolyte

All-solid-state lithium ion battery and positive electrode mixture

A coextrusion multi-layer tubular film comprising: an outer layer comprises a linear ethylene .alpha.-olefin copolymer having a density of from 0.900 to 0.945 gram per cubic centimeter; and an inner layer made of (i) a polypropylene-based resin or (ii) a resin composition comprising from 60 to 98% by weight of a polypropylene-base resin and from 40 to 2% of an ethylene .alpha.-olefin copolymer having a density of from 0.850 to 0.945 gram per cubic centimeter; the ratio of said outer layer to said inner layer being from 50:50 to 97:3.

Coextrusion multi-layer tubular film

Growing community of inventors

Sodegaura, Japan

Masakatsu Kimura