Ajinomoto Co., Ltd.

Other

Japan Synthetic Rubber Co., Ltd.

Hiroo Inokuchi

Tsutomu Kobayashi

Katsumi Niki

Asao Nakamura

Tatsuhiko Yagi

Kentaro Murano

Shohei Tamura

Naoki Sato

Takehiko Mori

Koshiro Toriumi

Kazuhiko Seki

Gunji Saito

Hiroshi Kawazura

Mizuka Sano

A fulvalene derivative represented by formula (1) below. ##STR1## where A.sup.1 -A.sup.8 are at least one atom or a combination of two or more atoms selected from S atom, Se atom, and Te atom; and R.sup.1 -R.sup.4 are alkyl or alkene having 3 to 22 carbon atoms. The fulvalene derivative of this invention has electric conductivity as it is at normal temperature and under normal pressure. It is useful as a semiconductor, which has an electrical conductance greater than 10.sup.-9 Scm.sup.-1 and a minimum specific resistance of 10.sup.5 .OMEGA..multidot.cm order.

Tetra-substituted fulvalene derivatives

An electrical conducting solid electrode on the surface of which cytochrome c.sub.3 is immobilized in an amount ranging from 20%-100% of the monolayer coverage, said electrode thereby provided with the electrocatalytic capability of the direct four-electron reduction of dioxygen to water, and its uses.

Heme protein immobilized electrode and its use

A novel type of carbon filaments grow from a purified graphite material when the purified graphite material is heated in a plasma. The carbon filaments thus obtained can be converted into softer graphite filaments. Both the carbon filaments and the graphite filaments as such are extremely useful due to their excellent mechanical strengths. In addition, from each of them, intercalation compounds with an alkali metal can be obtained, which are useful not only as a highly conductive material but also as a catalyst for various reactions.

Method for producing a carbon filament and derivatives thereof

A process for ortho-para-hydrogen conversion characterized by the use as a catalyst of a sulphur-containing semiconductive polymer produced by the dehalogenation of a poly(tetrahalophenylene sulphide) in the presence or absence of an organic solvent at 150.degree.-500.degree. C.

Process for ortho-para-hydrogen conversion

Growing community of inventors

Okazaki, Japan

Hiroo Inokuchi