Toyoda Gosei Co., Ltd.

Masateru Yamazaki

Shinji Oguchi

Seitaro Taki

Yasuhiko Shinoda

Miki Moriyama

A cell culture device includes a holding member including a main body cylindrical portion extending in a cylindrical shape in an axial direction and a holding portion provided at an axially intermediate portion of the main body cylindrical portion and holding a culture membrane; and a first cylindrical member detachably mounted on one axial side with respect to the holding member, extending in a cylindrical shape in the axial direction, and protruding from one axial end of the holding member toward the one axial side when being mounted to the holding member. Also included is a second cylindrical member detachably mounted on another axial side with respect to the holding member, extending in a cylindrical shape in the axial direction, and protruding from another axial end of the holding member toward the other axial side when being mounted to the holding member.

Cell culture device

Cell culture device and method of using the same

An object of the present invention is to suppress macro step growth in the growth of GaN crystal through a flux method. As a crucible for holding a melt when growing a GaN crystal through the Na flux method, the crucible is made of alumina and produced by plaster mold casting. The crucible is used, in which there are alumina grains abnormally grown on the inner walls thereof, and the maximum grain size of the abnormally grown alumina grains is not less than 10 &#x3bc;m. When such a crucible is selected and used, the macro step growth can be suppressed, thereby improving the GaN crystal quality.

Growing community of inventors

Kiyosu, Japan

Masateru Yamazaki