Tdk Corporation

Bmg Inc.

Other

Daihatsu Motor Company, Ltd.

The Nippon Synthetic Chemical Industry Co., Ltd.

Kyoto Prefectural Public University Corporation

Nitto Seiko Co., Ltd.

National University Corporation University of Toyama

Sadami Tsutsumi

Suong-Hyu Hyon

Tatsuji Sano

Toru Nonami

Masahiro Fukuma

Tetsuo Urabe

Shokyu Gen

Masatoshi Tanaka

Kazuaki Matsumura

Yukito Otsuki

Wook-Cheol Kim

Yusuke Kobayashi

Masakazu Ishihara

Naoki Miyamoto

Masahiro Yoshiyama

Yoshihiro Nishitani

Toshio Kita

Yoshinobu Oka

Tetsuo Aida

Tomoaki Murata

Koro Uenishi

Yoshimitsu Ueno

To ensure that a biodegradable medical implement dissolves in vivo at an appropriate dissolution rate. The biodegradable medical implement of the present invention is formed of a magnesium material, and, at least in one transverse section, a layer of magnesium crystal grains in which a (0001) plane in a hexagonal crystal structure is oriented toward a surface side is continuous over an entire circumference.

Biodegradable medical implement

A dental material primer and a dentin-regenerating pulp-capping agent which exhibit an excellent dentin-regenerating action, are disclosed. The dental material primer includes a hydrolyzed ethylene-vinyl acetate copolymer in which collagen is immobilized and the dentin-regenerating pulp-capping agent includes a hydrolyzed ethylene-vinyl acetate copolymer, in which collagen is immobilized, and a binder.

Primer for dental materials and pulp capping agent for dentin regeneration

It is to provide an implant with shock-absorbing property that is able to be strongly secured in a living body as well as a manufacturing method of such implant. The implant comprising: a substrate; a first film on the substrate, which is comprised of a polymer and has a functional group that enables adsorption of calcium ions; and a second film formed on the first film and being comprised of calcium phosphate. The manufacturing method of the implant comprising: forming said first film on a substrate; and subsequently, dipping the substrate in a calcium ion solution and in a phosphate ion solution alternately as to form the second film.

Bone-adherent implant with shock-absorbing property and manufacturing method thereof

A highly reliable vehicle driver's fatigue evaluating method is provided, which is capable of quantitatively calculating a degree of fatigue of a driver seated on a seat. The degree of fatigue of the driver seated on a seat is quantitatively calculated based on an amount of rearward deflection of a lower part of a backrest portion of the seat, a load applied downward to a front part of a seating portion of the seat, and a load applied rearward to an upper part of the backrest portion, in a state of the driver being seated on the seat.

Vehicle-occupant fatigue-level assessment method, vehicle seat assessment method, and vehicle seat assessment device

The present invention provides a tough denture and a method for producing the denture, which includes solid PMMA as a main component, being added to polar elastomer selected from a group of polyacrylate rubber copolymer, methylmethacrylate-alkylacrylate-styrene terpolymer, and fluororubber, and is fabricated in a process of being mixed and injected into a denture mold. A PMMA denture of present invention shows improved safety to living organisms and increased productivity of molding because of excellent mechanical properties and remarkable elution volume decrease after polymerization in comparison with ordinary type dentures of heat-polymerized PMMA. Furthermore, it is possible to widely apply the denture clinically because of good adaptability in oral applications with economical advantages.

Tough denture and method for producing the same

A living tissue replacement of crystallized glass having bioaffinity and mechanical strength is briefly obtained simply by pressure molding or machining without using a special equipment. A glass material having a softening point below its crystallization temperature and exhibiting viscous flow at temperatures below its melting point is heated at a temperature above its Tg and pressed at the temperature to mold to a desired shape, thereby manufacturing a living tissue replacement such as a dental crown. Molding can be done under a pressure of up to 20 MPa.

Glass material for preparing living tissue replacement

Method for preparing a molded glass material for use in the manufacture

Growing community of inventors

Kyoto, Japan

Sadami Tsutsumi