Tsubaki Nakashima Co., Ltd.

Nikkato Corporation

Matsushita Electric Industrial Co., Ltd.

Hideki Ono

Hiroshi Onishi

Hiroshi Uemura

Hiroshi Ikeda

Hiroki Takimoto

Kenji Yamada

Hiroyuki Matsuyama

Hiroaki Yonekubo

Hideho Shinoda

Ryuta Kondo

Shinichi Maruyama

Provided are a sintered ceramic and a ceramic sphere which are inhibited from suffering surface peeling due to fatigue resulting from repetitions of loading and can attain an improvement in dimensional accuracy when subjected to surface processing and which have excellent wear resistance and durability.

Sintered ceramic and ceramic sphere

Provided are a sintered ceramic and a ceramic sphere which are inhibited from suffering surface peeling due to fatigue resulting from repetitions of loading and can attain an improvement in dimensional accuracy when subjected to surface processing and which have excellent wear resistance and durability. A ceramic-sphere inspection device is also provided with which a ceramic sphere is inspected for a flaw present in the surface layer and for snow flakes without destroying the ceramic sphere. The device is a ceramic-sphere inspection device () in which a ceramic sphere (S) is rotatably supported in a given position and illuminating light emitted from a light projector () is detected with a light receiver () to evaluate the state of the inner part of the surface layer, and has been configured so that the light receiver () does not detect the light emitted from the light projector () and reflected at the surface of the ceramic sphere.

Device for inspecting ceramic sphere

An apparatus for washing human privates including a water heater (,), which is connected with a water supply pipe (,) and a hot water pipe (,) such that wash water supplied from the water supply pipe (,) is heated to a proper temperature by the water heater (,) while proceeding to the hot water pipe (,) through the water heater (,). A water supply controlling device (,) controls the supply of wash water to the water heater (,). A discharge device (,) is provided for discharging to the human privates the wash water heated to the proper temperature by the water heater (,), which is connected with the hot water pipe (,). An air mixing device (,) is employed for mixing air into the wash water, and a controller (,) selectively controls the amount of air mixed into the wash water by the air mixing device (,).

Bidet

Growing community of inventors

Nara, Japan

Hideki Ono