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National Institute of Advanced Industrial Science and Technology

Agency of Industrial Science and Technology

Agency of Industrial Science and Technology Ministry of International

Agency of Industrial Science & Technology, Ministry of International Trade & Industry

Yuji Horino

Akiyoshi Chayahara

Atsushi Kinomura

Nobuteru Tsubouchi

Yoshiaki Mokuno

Kanenaga Fujii

Minehiro Tonosaki

Yutaka Takei

Hiroyuki Okita

Toshiyuki Mihara

Naoji Fujimori

A method for producing a single crystals by preferential epitaxial growth of {100} face, comprising the steps of (1) growing the crystal on a single crystal {100} substrate; (2) forming on the side of the grown crystal a surface parallel to a {100} face different from the {face in the growth direction, and (3) growing the crystal on the formed {100} surface; and the steps (2) and (3) being performed once or more than once. A method for producing a single-crystal diamond using a metallic holder for the single-crystal diamond having a crystal holding portion which is raised above an outer peripheral portion of the holder, is part from the outer peripheral portion of the holder, and has a recessed shape. The methods enable the production of a large single-crystal diamond in a comparatively short time at low cost.

Method of producing single crystal

A surface hardening method for resins and a surface hardened resin, capable of reforming the surface of a plastic disk substrate at low energy in a short time, and a production device of such a resin is disclosed. The formation of an ion-implanted layer by implanting equal to or more than 10 carbon ions per cm into the surface of a plastic disk substrate at equal to or less than 20 KeV and the formation of a thin film of high hardness on the ion-implanted layer can be performed alternately or simultaneously, and the hardening rate is increased further by using a bias device.

Surface hardened resins for disk substrates, methods of manufacture thereof and production devices for the manufacture thereof

A laser ablation type ion source including vacuum chambers provided with a retaining section for holding a solid raw material for the generation of ions, an ion extracting electrode, an ion accelerating electrode, and a mass spectrograph for ion separation. The ion source also includes a laser beam source for injecting a laser beam of high density into the vacuum chamber.

Laser ablation type ion source

A material of ions is sputtered with cesium ions to generate negative ions and, the negative ions are accelerated and mass-separated to obtain a negative ion beam, and a material of thin film is sputtered with the negative ion beam, thereby forming a thin film on a base material.

Method of forming a highly pure thin film and apparatus therefor

A method for the extraction of an ion current from a space of a high degree of vacuum into a space of a low degree of vacuum comprises interposing between the space of the high degree of vacuum and the space of the low degree of vacuum an ion current thin film formed of a member having a uniform crystal orientation and causing the ion current to pass from the space of the high degree of vacuum through the thin film into the space of the low degree of vacuum.

Method for extracting ion current from space of high vacuum into space

Growing community of inventors

Ikeda, Japan

Yuji Horino