Abstract: A heat flux sensor is provided with a main body which detects heat flux, and filling members. The main body has a first surface. The first surface has an uneven shape, with a plurality of concave portions and a plurality of convex portions. The filling members are filled in the plurality of concave portions. Surfaces of the filling members constitutes a part of an outer surface of the heat flux sensor. The degree of flatness of the outer surface is higher than the degree of flatness of the first surface of the main body.

Abstract: A heat flux sensor is provided with a main body which detects heat flux, and filling members. The main body has a first surface. The first surface has an uneven shape, with a plurality of concave portions and a plurality of convex portions. The filling members are filled in the plurality of concave portions. Surfaces of the filling members constitutes a part of an outer surface of the heat flux sensor. The degree of flatness of the outer surface is higher than the degree of flatness of the first surface of the main body.

Abstract: The disclosure relates to an artificial tooth crown composed of glass ceramics comprising crystallized calcium phosphate forming essentially apatite which is a main inorganic component of natural bones or teeth. The disclosure also relates to a method of producing the artificial tooth crown. The artificial tooth crown has superior dimensional accuracy since it is made by precision casting. The tooth crown can be securely adhered by a dental cement such as glass ionomer. Furthermore, the physical properties of the tooth crown are very similar to those of the natural teeth, and the wear caused by the biting motion between the tooth crown and its mating tooth does not differ from that caused by the biting motion between the natural teeth. Furthermore, the method does not differ from the conventional precision casting method.

Abstract: The disclosure relates to a flexible ceramic bio-implant member comprising a bundled body of a plurality of ceramic fibers having flexibility and elasticity and bundled into a desired shape in the state of the fibers being allowed to make flexible movement. The bio-implant member is enabled to serve the purpose of flexible reinforcement of a conventional implant member by the use of this flexible bio-implant member in combination with the latter.

Abstract: Disclosed is a carrier for administration of medicines, which consists of a granular shaped article of a porous ceramic material having communicating fine pores. Pores of this carrier are impregnated with a medicine, or a capsule is formed from this carrier and the inner space of the carrier is filled with a medicine. In the resulting impregnated carrier or filled capsule, a desirable property of gradually releasing the medicine is obtained and a good durability of the effect of the medicine can be attained.

Abstract: This disclosure relates to an endosseous implant for use in dental and orthopedic treatment. The implant is a composite structure made of a combination of an outer ceramic member and an inner ceramic core member bonded together by glass cement. After being implanted, new bone tissue and new connective tissue penetrate into the outer member to form a net-like root structure therein, thereby increasing the stability of the implant and at the same time the outer member is reinforced by the inner core member.

Abstract: This invention is directed to a burnt ceramics composition of matter for an endosseous implant to be inserted in the bone tissue of a living body. The composition of matter consists of 95-50% of Al.sub.2 O.sub.3 and 5-50% of more than one compound selected from the group consisting of ZrO.sub.2, La.sub.2 O.sub.3 and Y.sub.2 O.sub.3.

Abstract: This disclosure relates to a somatic element of single crystalline sapphire ceramics for use as an implant for dental surgery, orthopedic prosthetic surgery and the like, which element is excellent in mechanical strength, flexibility and affinity with its ambient tissue so much so that it eliminates a fear of development of bone cancer and facilitates the proliferation of uniform bone tissue around the somatic element implanted.

Abstract: A process for synthesizing single crystalline beryl out of a molten salt is disclosed. The process comprises the steps of providing at least one flux to which is added the component oxides of beryl and optionally a colorant. The mixture thus obtained is heated at a temperature higher than the melting point of the flux to thereby form a molten salt. After the formation of the molten salt, the salt is cooled below the temperature sphere of beryl formation and is thereafter reheatd and again melted. At this point beryl crystals are added to the molten salt which thereby form single crystalline beryl from the molten salt. By the use of the process of the present invention, superior quality single crystalline beryl is produced economically and at a high yield rate.

Abstract: This invention is directed to a device for implanting an artificial endosseous element of ceramics in the field of dentistry, oral surgery and orthopedics, comprising an implant screw pin and a flange member or flange members. The present invention provides an implant element which is adapted for uses of prosthesis even in cases where a hole remains after extraction of a tooth or the bone tissues are unhealthy, and presents an implant pin which is adapted to be securely held by means of the flange member to the tissue of the jaw bone. This invention is also directed to an implant method for use of such device.

Abstract: A magnetic memory structure which may be used as a disc memory, a drum memory or a similar component including a ceramic substrate having a thin film of magnetic ferrite material thereon, said film being of a cobalt-based spinel type ferrite and a method for manufacturing the same.

Abstract: This invention is directed to a device for implanting an artificial endosseous element of ceramics in the fields of dentistry, oral surgery and orthopedics, comprising an implant screw pin and more than one nut element in combination with said screw pin primarily for securely holding said screw pin in a bone structure after implantation thereof. This invention is also directed to an implant method for use of such device.