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Wataru Sotoyama
Researcher at Fujitsu
Publications - 56
Citations - 1618
Wataru Sotoyama is an academic researcher from Fujitsu. The author has contributed to research in topics: Optical switch & Waveguide (optics). The author has an hindex of 21, co-authored 56 publications receiving 1582 citations.
Papers
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Journal ArticleDOI
Polymer films formed with monolayer growth steps by molecular layer deposition
TL;DR: In this paper, pyromellitic dianhydride (A) and 2,4-diaminonitrobenzene (B) were used for layer deposition.
Journal ArticleDOI
Efficient organic light-emitting diodes with phosphorescent platinum complexes containing N∧C∧N-coordinating tridentate ligand
TL;DR: In this article, the authors describe the phosphorescent characteristics of two platinum complexes containing an N∧C∧N-coordinating tridentate ligand: platinum(II) 3,5-di(2-pyridyl)toluene chloride [Pt(dpt)Cl] and a newly synthesized platinum( II) 3.5-dicalbazolylbiphenyl (CBP) host showed highly efficient photoluminescence.
Patent
Active optical circuit sheet or active optical circuit board, active optical connector and optical MCM, process for fabricating optical waveguide, and devices obtained thereby
Tetsuzo Yoshimura,Wataru Sotoyama,Takeshi Ishitsuka,Koji Tsukamoto,Shigenori Aoki,Satoshi Tatsuura,Katsusada Motoyoshi,Yasuhiro Yoneda +7 more
TL;DR: In this article, an active optical circuit sheet is defined where an electro optical switch or optical modulator is driven with a voltage from an electronic device, the electrical signal (SIGin) is converted to an optical signal, transmitted and then converted to SIGout at an optical receiver element, and an electrical connection is formed between an optical wiring board and the electronic device for transmission of signals.
Patent
Method of producing optical waveguide system, optical device and optical coupler employing the same, optical network and optical circuit board
Tetsuzo Yoshimura,Wataru Sotoyama,Katsusada Motoyoshi,Takeshi Ishitsuka,Koji Tsukamoto,Shigenori Aoki,Yasuhiro Yoneda,Satoshi Tatsuura,Haruhisa Soda,Tsuyoshi Yamamoto +9 more
TL;DR: In this paper, a photoelectric device containing an organic conjugated polymer film is deposited on a substrate by vapor deposition polymerization as at least one function layer, which is used for optical circuit devices and optical circuit substrates.
Patent
Organometallic complex, organic EL element and organic EL display
TL;DR: In this article, an organic EL element includes an organometallic complex including a rhenium atom; one ligand which has a coordinated nitrogen atom and a coordinated oxygen atom, each coordinated with the rhenia atom, and has at least one π conjugation part; and the other ligand coordinated with rhenias atom in such a way that the ligand saturates the coordination number of the rhensia atom and the charge of the whole organometallic complex is neutral.