Fujitsu Corporation

The University of Tokyo

Jatco Corporation

Japan Synthetic Rubber Co., Ltd.

Toudai Tlo, Ltd.

Tamotsu Murakami

Naomasa Nakajima

Youji Hiraoka

Akiya Kamimura

Taro Takagi

Yuichiro Nakaya

An event is classified as a fault of hardware or a fault of a system or a control system. When the event is classified as the fault of the hardware, the event is expanded into lower events, physical quantities of the event and the lower events are acquired, and it is examined whether the event is expanded properly or not based on relationship between the physical quantity of the event and the physical quantities of the lower events. When the event is classified as the fault of the system or the control system, a block diagram of the system or the control system is created, and the event is expanded into the lower events based on input/output relationship in the block diagram of the system or the control system.

FT diagram creation assistance device and FT diagram creation assistance method

In an optical lithography using a mask pattern, or producing a large quantity of three-dimensional articles rapidly with high precision, a predetermined mask pattern is drawn directly on the surface of a resin composition for optical lithography, and the mask pattern is irradiated with light, thereby irradiating the surface of the resin composition containing a photocurable component through the mask pattern The step of forming a cured resin layer corresponding to the drawing is repeated to form a three-dimensional article composed of multiple cured resin layers. Thus, unlike the beam scanning, the curing is uniform in cross section.

Optical lithography

An apparatus automatically generates a solid model from a plurality of plan views. The apparatus includes an extraction unit for extracting information related to surfaces from the plan views, a first generation unit for generating candidate surfaces based on the information extracted by the extraction unit, a second generation unit for generating candidate surfaces and candidate edge lines by obtaining intersecting lines among the candidate surfaces generated by the first generation unit, a third generation unit for generating candidate solids by determining combinations of the candidate surfaces generated by the second generation unit, and a selection unit for collating the candidate solids generated by the third generation unit with the plan views and selecting a matching candidate solid as a solid model.

Method and apparatus for automatically generating solid model and

A novel optical molding process for forming a three-dimensional article from a photosensitive resin which is liquid at normal temperatures which involves forming a plurality of laminated cured resin layers by a repetition of the step of forming a cured resin layer by selectively irradiating the surface of a photosensitive resin, wherein the photosensitive resin has been coagulated by cooling and the coagulated resin is irradiated to cure it. The process can produce a three-dimensional article having an overhanging part without producing warping in the finished product and without requiring a support for the overhanging part while this part is being optically molded.

Growing community of inventors

Tokyo, Japan

Tamotsu Murakami