H
Hiroshi Okamoto
Researcher at Hirosaki University
Publications - 151
Citations - 3066
Hiroshi Okamoto is an academic researcher from Hirosaki University. The author has contributed to research in topics: Laser & Semiconductor laser theory. The author has an hindex of 28, co-authored 151 publications receiving 2967 citations. Previous affiliations of Hiroshi Okamoto include Nippon Telegraph and Telephone.
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Journal ArticleDOI
Optical bandgap energy of wurtzite InN
TL;DR: Wurtzite InN films were grown on a thick GaN layer by metalorganic vapor phase epitaxy as discussed by the authors, and growth of a (0001)-oriented single crystalline layer was confirmed by Raman scattering, x-ray diffraction, and reflection high energy electron diffraction.
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Association of STAT4 With Susceptibility to Rheumatoid Arthritis and Systemic Lupus Erythematosus in the Japanese Population
Shu Kobayashi,Katsunori Ikari,Hirotaka Kaneko,Yuta Kochi,Kazuhiko Yamamoto,Kenichi Shimane,Yusuke Nakamura,Yoshiaki Toyama,Takeshi Mochizuki,So Tsukahara,Yasushi Kawaguchi,Chihiro Terai,Masako Hara,Taisuke Tomatsu,Hisashi Yamanaka,Takahiko Horiuchi,Kayoko Tao,Koji Yasutomo,Daisuke Hamada,Natsuo Yasui,Hiroshi Inoue,Mitsuo Itakura,Hiroshi Okamoto,Naoyuki Kamatani,Shigeki Momohara +24 more
TL;DR: It is concluded that STAT4 is associated with rheumatoid arthritis and systemic lupus erythematosus in the Japanese, and is a common genetic risk factor for autoimmune diseases, with similar strength across major racial groups.
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Two-mode thermal-noise squeezing in an electromechanical resonator.
TL;DR: An electromechanical resonator is developed in which mechanical nonlinearities can be dynamically engineered to emulate the nondegenerate parametric down-conversion interaction, paving the way towards an entangled macroscopic mechanical system at the single phonon level.
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Compositional Disordering of GaAs-AlxGa1-xAs Superlattice by Ga Focused Ion Beam Implantation and its Application to Submicron Structure Fabrication
TL;DR: In this article, a Ga ion is implanted into a GaAs-AlxGa1-xAs superlattice epitaxial wafer and a line-and-space scan of the Ga ion beam is performed.
Journal Article
Beneficial action of statins in patients with rheumatoid arthritis in a large observational cohort.
Hiroshi Okamoto,Kyoko Koizumi,Shigeo Kamitsuji,Eisuke Inoue,Masako Hara,Taisuke Tomatsu,Naoyuki Kamatani,Hisashi Yamanaka +7 more
TL;DR: It is indicated that statins have beneficial effects in reducing RA disease activity in the daily practice of rheumatology.