Mino Ceramic Co., Ltd.

Other

Canon Kabushiki Kaisha

Takeshi Kumazawa

Kiyoto Sekine

Yoshiyuki Sensui

Yutaka Maruyama

Kiyoshi Nitto

Hideki Kita

Hideki Hyuga

Toru Honda

Naoki Soumiya

Yoshiaki Hayashi

Ayumi Tsujino

Mikichika Haga

A shock absorbing memberhaving a ceramic bonded bodyhaving: a plurality of first sheet-like memberseach having a ceramic containing 60 mass % or more of boron carbide and each having a thickness of 0.1 to 50 mm; and a bonding layer arranged between the first sheet-like membersadjacent to each other, the bonding layer bonding surfaces to be bonded facing each other of the first sheet-like members adjacent to each other, wherein the bonding layer has a bonding material containing at least one metal selected from the group consisting of aluminum, copper, silver, and gold.

Shock absorbing member

A bonded, boron carbide-containing ceramic body includes ceramic members. These ceramic members each contain boron carbide at 2 mass % or higher, and are integrated together via a bonding layer bonded with a bonding material containing at least one metal selected from the group consisting of aluminum, copper, gold and zirconium or integrated together via a bonding layer formed from one of aluminum metal and an aluminum compound and a titanium compound as bonding materials, wherein a bonded part has a strength of 100 MPa or higher. According to this technology, the boron carbide-containing ceramic members can be bonded together with a high strength of 100 MPa or more by a simple process, and further, the bonding is feasible with excellent chemical resistance at the bonded part as needed.

Boron carbide-containing ceramic bonded body and method for producing the bonded body

An aspect of the present invention is to provide an economical production technology for obtaining a dense boron carbide ceramic product without impairment to excellent mechanical properties, which boron carbide ceramics are inherently equipped with, by conducting heating under normal pressure without application of pressure and without needing addition of a large amount of a sintering additive to a raw material or needing any special additive or treatment. The present invention provides a production process in which, upon heating a boron carbide green body under normal pressure without application of pressure after pressing a boron carbide powder material to obtain the boron carbide green body, the boron carbide green body is heated with one of a powder, green body or sintered body, which contains at least one of aluminum and silicon, being disposed in a furnace.

Dense boron carbide ceramic and process for producing the same

A vibration type driving apparatus capable of inhibiting wear in an elastic member and a contact member is provided. The vibration type driving apparatus is a vibration type driving apparatus relatively driving an elastic member given vibrations by an electric-mechanical energy conversion element and a contact member contacting the elastic member, wherein at least one of the elastic member and the contact member is formed by aluminum oxide ceramics containing 5 wt % to 40 wt % of zirconium oxide.

Vibration type driving apparatus

A firing setter, which is useful for a heat treatment or firing step upon production of ceramic-based electronic device components or production of metal-based components obtained by injection molding, is provided with plural trough-holes and has an alumina content of at least 70 wt. %. Each of the through-holes is linear with substantially the same inner diameter along a length thereof and has an inner diameter of from 0.3 to 1 mm. A process for producing the firing setter is also disclosed.

Firing setters and process for producing these setters

Growing community of inventors

Aichi, Japan

Takeshi Kumazawa