Search Results - "Chiba, Akira"

Three-Coil Combined Winding Configuration for a 2-DOF Actively Controlled Bearingless Permanent Magnet Motor by Asama, Junichi, Chiba, Akira

“…This article describes a simple combined winding configuration for a two-degrees-of-freedom (DOF) controlled bearingless motor with a six-slot/six-pole…”
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Performance Evaluation of a Homopolar Bearingless Motor for Ultrahigh Speed Applications by Asama, Junichi, Chiba, Akira

“…This study evaluates the performance of a homopolar bearingless motor driven at 100 000 r/min with a mechanical output power of 120 W. The rotor has two…”
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Design of Switched Reluctance Motor Competitive to 60-kW IPMSM in Third-Generation Hybrid Electric Vehicle by Kiyota, K., Chiba, A.

“…In this paper, the design of a switched reluctance motor (SRM) having torque, power, speed-range, and efficiency values competitive to those of the interior…”
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Acoustic Noise and Vibration Reduction of SRM by Elimination of Third Harmonic Component in Sum of Radial Forces by Takiguchi, Masaki, Sugimoto, Hiroya, Kurihara, Noboru, Chiba, Akira

“…A novel method to reduce an acoustic noise and the vibration of a switched reluctance motor has been proposed. In this method, driving current is a sum of dc,…”
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Asymmetrical Four-Phase Combined Winding Arrangement for Bearingless PM Motors by Asama, Junichi, Kamiya, Yoshinori, Chiba, Akira

“…Conventional bearingless motors typically comprise two sets of independent windings in the stator to produce torque and suspension force, denoted by a…”
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Cylindrical Rotor Design for Acoustic Noise and Windage Loss Reduction in Switched Reluctance Motor for HEV Applications by Kiyota, Kyohei, Kakishima, Takeo, Chiba, Akira, Rahman, M. Azizur

“…A switched reluctance motor (SRM) is one of the candidates of rare-earth-free motors for hybrid electric vehicles (HEVs). An SRM has been developed with same…”
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Comparison of the Test Result and 3D-FEM Analysis at the Knee Point of a 60 kW SRM for a HEV by Kiyota, Kyohei, Kakishima, Takeo, Sugimoto, Hiroya, Chiba, Akira

“…The maximum torque values in computer analysis and experiment in the switched reluctance motor (SRM), having competitive torque density and efficiency with…”
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Vibration Control for a Rotor Supported by Oil-Film Bearings Using a Bearingless Motor by Tsunoda, Wataru, Chiba, Akira, Shinshi, Tadahiko

“…Rotors of large turbomachinery are usually supported by oil-film bearings, because an oil-film bearing has a simple structure, high load capacity, and large…”
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Void formation in bulk silica glass by fiber fuse induced with a focused laser beam by Sato, Shun, Hidai, Hirofumi, Matsusaka, Souta, Chiba, Akira, Morita, Noboru

“…Glass is transparent to infrared beams at room temperature, but absorbs these beams at high temperatures. When the optical glass fiber is heated, the glass…”
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Mechanical tension contributes to clustering of neurotransmitter vesicles at presynaptic terminals by Siechen, Scott, Yang, Shengyuan, Chiba, Akira, Saif, Taher

“…Memory and learning in animals are mediated by neurotransmitters that are released from vesicles clustered at the synapse. As a synapse is used more…”
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Simple Driving Method for a 2-DOF Controlled Bearingless Motor Using One Three-Phase Inverter by Asama, Junichi, Oi, Takumi, Oiwa, Takaaki, Chiba, Akira

“…In this paper, we propose a simple driving method that uses only one three-phase inverter for an actively controlled 2-DOF bearingless motor. This motor has a…”
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Torque Density and Efficiency Improvements of a Switched Reluctance Motor Without Rare-Earth Material for Hybrid Vehicles by Chiba, Akira, Takano, Yuichi, Takeno, Motoki, Imakawa, Takashi, Hoshi, Nobukazu, Takemoto, Masatsugu, Ogasawara, Satoshi

“…A machine design of a switched reluctance motor having competitive torque and efficiency as well as compactness with respect to an interior permanent-magnet…”
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Current Waveform for Noise Reduction of a Switched Reluctance Motor Under Magnetically Saturated Condition by Furqani, Jihad, Kawa, Masachika, Kiyota, Kyohei, Chiba, Akira

“…A novel method is proposed to derive the current waveform to reduce noise and vibration of a switched reluctance motor in a magnetically saturated region…”
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Core–shell sphere formation by laser-induced migration of stainless steel sphere in silver-doped glass by Yoshimura, Shukoh, Kawamura, Hirofumi, Hidai, Hirofumi, Matsusaka, Souta, Chiba, Akira, Kishi, Tetsuo, Morita, Noboru

“…The laser manipulation of metal spheres in glass has been reported in the present work. Formation of a stainless steel-silver core–shell sphere in the glass…”
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Clarification of fast metal sphere movement in glass by Nishioka, Nobuyasu, Hidai, Hirofumi, Matsusaka, Souta, Chiba, Akira, Morita, Noboru

“…In this study, metal spheres were implanted into glass by continuous-wave (CW) laser illumination, which manipulated the metal sphere inside the glass. The…”
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Proposal and Analysis of a Novel Single-Drive Bearingless Motor by Asama, J., Hamasaki, Y., Oiwa, T., Chiba, A.

“…In this paper, a novel design of a one degree of freedom actively positioned bearingless motor, hereafter referred to as a single-drive bearingless motor, has…”
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Bing-Neel Syndrome Successfully Treated with Tirabrutinib by Oyama, Takashi, Taoka, Kazuki, Chiba, Akira, Matsuda, Kensuke, Maki, Hiroaki, Masamoto, Yosuke, Kurokawa, Mineo

“…Bing-Neel syndrome (BNS) is a rare central nervous system manifestation of lymphoplasmacytic lymphoma/Waldenström macroglobulinemia (LPL/WM). We herein report…”
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Dedoping of phosphorus and tin via laser-induced nickel sphere migration in glass ceramics by Yoshimura, Shukoh, Hidai, Hirofumi, Matsusaka, Souta, Chiba, Akira, Kishi, Tetsuo, Morita, Noboru

“…•Nickel sphere migration in glass ceramics eliminated phosphorus and tin.•Eliminated phosphorus and tin were condensed in the nickel sphere.•Nickel was doped…”
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A Novel Stator Structure for Active Axial Force Improvement in a One-Axis Actively Positioned Single-Drive Bearingless Motor by Sugimoto, Hiroya, Shimura, Itsuki, Chiba, Akira

“…This paper presents a novel stator structure in an actively positioned bearingless motor with 1-degree of freedom. The single-drive bearingless motor concept…”
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Metal sphere migration in glass by surface heating using CO2 laser by Sawafuji, Arata, Hidai, Hirofumi, Matsusaka, Souta, Chiba, Akira, Morita, Noboru

“…The interfacial tension gradient originating from a temperature gradient causes particle migration. Previously, the authors reported the manipulation of a…”
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