Other

Nishikawa Rubber Co., Ltd.

Jeol Ltd.

Nakamichi Yamasaki

Kenji Tsuda

Toshikazu Honda

Masami Terauchi

Hiroyuki Okuda

Michiyoshi Tanaka

Toshinari Tenno

Katsushige Tsuno

Toshikatsu Kaneyama

Masaru Nakahara

Heiji Enomoto

Toshinari Tennoh

Emi Fujita

Atsushi Kishita

An omega energy filter capable of increasing energy dispersion while canceling out second-order aberrations. The energy filter is mirror-symmetric with respect to the center plane C. A beam enters a first nonuniform magnetic field produced by a first magnet, then enters a second nonuniform magnetic field region produced by a second magnet. The trajectory of the beam is curved by the field produced by the second magnet. Finally, the beam enters a third magnetic field region produced by the first magnet. The beam is deflected in this region and reaches an exit slit.

Energy filter

There is disclosed an imaging energy filter equipped with a distortion corrector. The energy filter is incorporated in an electron microscope and includes a spectrometer having magnets for producing magnetic fields. In this spectrometer, coils for exciting the magnets and potentiometers having variable resistors are connected in parallel. The variable resistors of the potentiometers are shifted to control the ratio of currents flowing into coils of shunting circuits.

Imaging energy filter equipped with distortion corrector

A process for the preparation of a deuterated compound, which requires neither many steps nor an expensive reagent, and is considerably economical and can be widely used for general-purposes because raw materials which can be used therein are not particularly limited. Specifically, a deuterated compound is obtained by a process comprising treating an organic compound (an aliphatic or alicyclic compound, an aromatic hydrocarbon or a polymer compound such as rubbers and proteins) in heavy water under high-temperature and high-pressure conditions not less than the subcritical temperature and the subcritical pressure.

Process for the preparation of a deuterated compound

A process for the desulfurization of a sulfur-containing composition is described. The process comprises providing a sulfur-containing composition, adding an aqueous medium and a sulfur absorbent to the composition, and subjecting the resultant mixture to hydrothermal reaction under specific conditions to obtain a desulfurized product. When the sulfur-containing composition is made of vulcanized rubbers, the rubber can be converted into oily substances by treating the rubber product under supercritical conditions using an aqueous medium. The conversion reaction is facilitated by addition of metal oxides or salts.

Process for the desulfurization of sulfur-containing compositions by

Process for the conversion of vulcanized rubbers into oils by use of

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Hiroshima, Japan

Kenji Tsuda