Hideaki Tanaka

Osaka University

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Kunimasa Ohta

Kyushu University

Genji Kurisu

Protein Research Foundation

Nobuhiro Kuriyama

National Institute of Advanced Industrial Science and Technology

Yohei Shinmyo

Kanazawa University

Tomitake Tsukihara

University of Hyogo

Nobuhiko Takeichi

National Institute of Advanced Industrial Science and Technology

Hiroshi Miyamura

University of Shiga Prefecture

Kunihiko Obata

RIKEN Center for Brain Science

Iftekhar Bin Naser

BRAC University

Giasuddin Ahmed

Bangabandhu Sheikh Mujib Medical University

Cooperative Institutions

Osaka University

219

The University of Tokyo

152

Kyoto University

129

Kumamoto University

112

National Institute of Advanced Industrial Science and Technology

102

Kyushu University

Japan Science and Technology Agency

Nagoya University

Tohoku University

Hokkaido University

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Novel Power Si/4H-SiC Heterojunction Tunneling Transistor (HETT)

Materials science forum (2006)

Tetsuya Hayashi Yoshio Shimoida Hideaki Tanaka Shigeharu Yamagami Satoshi Tanimoto

We demonstrate a novel power Si/4H-SiC heterojunction tunneling transistor (HETT) on the basis of theoretical analysis and experimental results. The HETT is an insulated gate drive device and has a unique switching mechanism. In the off-state, the heterojunction barrier prevents current flow between the Si source region and the 4H-SiC drift region. In the on-state, the width of the heterojunction barrier is controlled by the gate bias to allow tunneling current to flow. The HETT has a zero channel length structure that is more independent of channel mobility compared with a conventional 4H-SiC MOSFET. As a result, the HETT is expected to have low on-resistance. A HETT was fabricated with n+-type polycrystalline silicon on an n--type 4H-SiC epitaxial wafer for power devices. The fabricated HETT shows a low specific on-resistance of 6.8 mcm2 (at Jd=500 A/cm2).

Polycrystalline silicon

10.4028/www.scientific.net/msf.527-529.1453

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Citations (9)

Structural atlas of dynein motors at atomic resolution

Biophysical Reviews (2018)

Akiyuki Toda Hideaki Tanaka Genji Kurisu

Dynactin

Structural Biology

10.1007/s12551-018-0402-y

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Citations (4)

High-Reliability ONO Gate Dielectric for Power MOSFETs

Materials science forum (2005)

Satoshi Tanimoto Hideaki Tanaka Tetsuya Hayashi Yoshio Shimoida Masakatsu Hoshi

Thin (~10nm) Si layers have been deposited using Rapid Thermal CVD at temperatures ranging 950°C-1050°C. RTCVD deposited Si layers have been oxidized using N2O at 1300°C during relatively short times (15min) to produce SiO2 layers of 20-30nm. The interfacial characteristics of N2O oxidized RTCVD layers have been studied using the conductance method, showing a reduced traps density and a low band bending fluctuation when compared with conventional N2O grown oxides on 4H-SiC substrates. The surface topology of these layers has also been analyzed evidencing an adequate topography with low roughness.

Band bending

Dielectric strength

10.4028/www.scientific.net/msf.483-485.677

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Citations (5)

Evaluation of GMR head durability to lapped surface roughness using high-field transfer curves

Hideaki Tanaka Hiromu Chiba Takehisa Yoshikawa Yukio MAEDA

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Citations (2)

Ephrin-A5 restricts topographically specific arborization in the chick retinotectal projection in vivo

Proceedings of the National Academy of Sciences (2002)

Takashi Sakurai Eric V. Wong Uwe Drescher Hideaki Tanaka Daniel G. Jay

The retinotectal map is the best characterized model system to study how axons respond to guidance cues during the formation of the nervous system. Recent studies have shown that the critical event in forming this map is topographic-specific axon branching. To elucidate the in vivo role of the repulsive cue ephrin-A5 in this event, we used chromophore-assisted laser inactivation (CALI) to generate acute loss of ephrin-A5 function in localized areas of the posterior tectum of chick embryos in ovo and analyzed the resulting changes of retinal projections during initial outgrowth (E11) and when retinal axons arborize in the deep layers in the tectum (E12). We confirmed that ephrin-A5 functions to restrict initial axon outgrowth at E11. At E12, CALI of ephrin-A5 did not affect the extent of axon outgrowth on the tectal surface but instead caused ectopic arborization posterior to the topographically correct site in deeper layers of the tectum. This shows that ephrin-A5 restricts arborization during this critical process for developing the retinotopic map. CALI provides an approach to inactivate in vivo function in higher vertebrates with high temporal and spatial specificity that may have wide application.

Tectum

Ephrin

Fate mapping

10.1073/pnas.162161499

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Citations (48)

Multiple neural tubes inducd by retinoic acid in chick embryos

Neuroscience Research Supplements (1990)

Hideaki Kohga Kunihiko Obata Hideaki Tanaka

10.1016/0921-8696(90)90550-m

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Conductive Langmuir–Blodgett Films of Dialkyldimethylammonium–Ni(dmit)₂Complexes

Chemistry Letters (1988)

Takayoshi Nakamura Hideaki Tanaka Mutsuyoshi Matsumoto Hiroaki Tachibana Eiichiro Manda

Abstract Conductive LB films of dialkyldimethylammonium–Ni(dmit)2complexes are described. The precursor 1:1 complexes were transferred onto substrates and converted into conductors by the bromine oxidation. The bulk conductivities of the films were 10−3 to 10−1 S/cm, depending on the length of alkyl chain. The spectral changes during the oxidation was also examined.

10.1246/cl.1988.1667

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Citations (35)

Effect of Hydrophobic Group on the Structure of Langmuir–Blodgett Films of Amphiphilic Cyanine and Squarylium Dyes

Chemistry Letters (1988)

Mutsuyoshi Matsumoto Tatsuo Sekiguchi Hideaki Tanaka Motoo Tanaka Takayoshi Nakamura

Abstract Phenylcyclohexyl group, a mesogenic unit, was introduced into the hydrophobic part of the amphiphilic cyanine and squarylium dyes. Surface pressure-area isotherms were explained in terms of the bulkiness and the stronger dispersion force of the mesogenic unit. In-plane anisotropy was observed for mixed LB films of the amphiphilic cyanine dye containing the mesogenic unit.

Cyanine

10.1246/cl.1988.1085

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Citations (3)

Network cache system with the autonomic recovery mechanism for wide-area SAN

IEICE Technical Report; IEICE Tech. Rep. (2008)

Takahiro Miyamoto Michiaki Hayashi Hideaki Tanaka

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Phase Transition of Mg/Pd Laminate Composites during Hydrogenation/Dehydrogenation

Materials science forum (2007)

Nobuhiko Takeichi Hideaki Tanaka Koji Tanaka Nobuhiro Kuriyama Tamotsu T. Ueda

Mg-based laminate composites prepared by a repetitive-rolling method have a large hydrogen capacity as well as good kinetics and reversibility for hydrogen reaction. Mg/Pd laminate composite (Mg/Pd=6) can absorb a large amount of hydrogen up to 1.47 H/M (4 mass%), and desorb hydrogen reversibly at 573K. In this study, we investigated the mechanism of phase transition of the Mg/Pd laminate composites during hydrogenation/dehydrogenation by means of in-situ XRD measurements. In Mg/Pd laminate composite (Mg/Pd=6), the XRD profile of as-rolled sample indicated the existence of Mg and Pd within the detection ability of our XRD equipment. Mg6Pd intermetallic compound are formed during initial activation process. The Mg6Pd intermetallic compound can store hydrogen reversibly through the disproportionation and recombination processes.

10.4028/www.scientific.net/msf.561-565.1593

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