Ryuichi Narita
Mitsubishi Heavy Industries
22 Papers
44 Citations
Ryuichi Narita is an academic researcher from Mitsubishi Heavy Industries. The author has contributed to research in topics: Laser & Nozzle. The author has an hindex of 4, co-authored 21 publications.
Chat about Author
Papers
New approach to evaluate 3D laser printed parts in powder bed fusion-based additive manufacturing in-line within closed space
TL;DR: In this paper, a new in-process approach for quality control with high precision metrology based on structured light is proposed, which allows precise layer by layer dimensional measurement of both the printed part and the powder deposition, allows for process assessment in- or off-line.
51
Patent
Nozzle welding method, nozzle part repairing method, and nozzle welded structure
Kazuhiko Kamo,Ryuichi Narita,Nobuyuki Hori +2 more
- 10 Jun 2010
TL;DR: In this paper, the authors proposed a method for automatic and efficient nozzle welding which can be performed automatically and efficiently, and which can also be performed under the condition of a high exposure amount.
15
Patent
Nozzle mounting structure
Nobuyuki Hori,Ryuichi Narita,Moritatsu Nishimura,Harutaka Suzuki,Koji Okimura +4 more
- 18 Jan 2011
TL;DR: In this paper, the authors provided a nozzle mounting structure for mounting a nozzle (20) penetrating through a reactor vessel (10) having a hemispherical concave inner surface, which included a removed concave portion (17) in which a base material (12) on an inner surface side of the reactor vessel was removed in a symmetrical shape around a normal line (N) on the hemispheric concave internal surface of the vessel.
10
Patent
Vibration suppression member for heat transfer tube, manufacturing method therefor, device and method for suppressing vibration of heat transfer tube, and steam generator
Masahito Matsubara,Hiroyuki Fujiwara,Masanori Toyoda,Nobutaka Nakajima,Tomohisa Ota,Masahiko Toyoda,Ryuichi Narita,Takafumi Hiro,Takaya Kusakabe +8 more
- 19 Jul 2013
TL;DR: In this article, a vibration suppression member for a heat transfer tube, a method for manufacturing a vibration suppressor for heat transfer tubes, a device and a method to suppress vibration of a heat-transfer tube, and a steam generator are presented.
4
Patent
Laser processing apparatus
Ryuichi Narita,Saneyuki Goya,Kenji Muta,Toshiya Watanabe,Masao Watanabe +4 more
- 26 Feb 2014
TL;DR: In this article, the focal positions of laser beams having different wavelength bands coincide with one another: a laser output device, a spectrometer that disperses the laser beams of the respective wavelength bands, and condensers that respectively condense the laser beam dispersed by the spectrometers independently and match focal points thereof to the same position.
3