Ricoh Company, Ltd.

Takuei Nishio

Takashi Fujita

Kazuhiro Fujita

Tadashi Nakamura

Atsushi Takeuchi

Kohji Sakai

Shigeaki Imai

Hiroyuki Suhara

Yuji Nagatomo

Muneaki Iwata

Nobuyuki Arai

Kenichiroh Hashimoto

Shohta Kobashigawa

Hirotoshi Nakayama

Yoichi Ichikawa

Asato Tamura

Hiroto Tachibana

Ichiro Maeda

Rie Hirayama

Hisataka Takagi

A fabricating apparatus includes a powder layer forming device, a fabrication liquid discharge device, and processing circuitry. The powder layer forming device is configured to form a powder layer. The fabrication liquid discharge device is configured to discharge fabrication liquid onto the powder layer. The processing circuitry is configured to control the fabrication liquid discharge device to discharge the fabrication liquid with a first kinetic energy and then discharge the fabrication liquid with a second kinetic energy higher than the first kinetic energy.

Fabricating apparatus and method for altering the kinetic energy of liquid droplets

Disclosed is a three-dimensional object shaping apparatus for forming an object with a desired shape in a three-dimensional space represented by a three-dimensional orthogonal coordinate system of XYZ. The three-dimensional object shaping apparatus includes a light source; a drive mechanism to move the shaping surface parallel to an XY plane in a Z axis direction; an optical scanning unit to scan light emitted from the light source along a Y axis direction perpendicular to the Z axis; and a rotation mechanism to rotate one of the optical scanning unit and the shaping surface relative to each other with respect to the Z axis as a rotation axis, where a pattern of the light to be applied to the shaping surface is controlled by a combination of a rotation of the shaping surface performed by the rotation mechanism and the scanning of the light performed by the optical scanning unit.

Three-dimensional object shaping apparatus and method

An object detector including a light-emitting system to emit light to an object, a light detector, a signal detector, and a threshold adjuster. The light detector receives the light emitted from the light-emitting system and reflected by the object, and output a signal. The signal detector detects the signal output from the light detector based on a threshold value of voltage. The threshold adjuster changes the threshold value between when the light-emitting system emits light to a part of a light-emission range of the light-emitting system and when the light-emitting system emits light to other part of the light-emission range other than the part of the light-emission range.

Object detector, sensing device, and mobile apparatus

Growing community of inventors

Kanagawa, Japan

Takuei Nishio