Fuji Electrochemical Co., Ltd.

Isamu Sasaki

Michihiro Torii

Yasuhiko Mano

Akira Shimokawa

Takeshi Mochizuki

Utsuo Kihara

Kohei Hirukawa

Hirohito Goto

Hiroshi Urata

Ryoji Tsuchiya

Kunio Esaki

Magnetic oxide and process for producing same

Process for producing single phase magnetite powder

A new method for preparation of Mn-Zn or Ni-Zn type ferrite single crystals. The ferrite materials are provided in a lower portion of a crucible and completely dissolved. The crucible is moved within a predetermined atmosphere of temperature gradient. A solid which is equilibrium in composition to the ferrite materials is supplied into the crucible while the dissolved ferrite materials are crystallizing from the lower extremity while a liquid-phase zone is maintained constant in depth. Ferrite single crystals of at least about 800 mm in length are grown which are homogeneous in composition throughout their length.

Process for producing ferrite single crystals

An H-type ceramic resonator having two resonating leaves, a connecting leaf for bridging the two resonating leaves to form an H-shape, and electrodes disposed on at least both surfaces of the resonating leaves. The resonator has a dimensional relationship which falls within the following equities:

H-Type ceramic resonator

Growing community of inventors

Kosai, Japan

Isamu Sasaki