Search Results - "HASHIGUCHI, Gen"

Improvement of the reliability of potassium-ion electrets thorough an additional oxidation process by Ohata, Yoshiki, Nakanishi, Toru, Chokawa, Kenta, Araidai, Masaaki, Ishiguro, Takuma, Mitsuya, Hiroyuki, Toshiyoshi, Hiroshi, Shibata, Yasushi, Hashiguchi, Gen, Shiraishi, Kenji

“…Potassium-ion electrets, which mainly consist of amorphous silica and permanently store negative charge, are vital elements of small autonomous…”
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Electret MEMS Vibration Energy Harvester with Reconfigurable Frequency Response by Hashiguchi, Gen, Toshiyoshi, Hiroshi

“…We demonstrate a microelectromechanical systems (MEMS) electret-type vibrational energy harvester with a wide bandwidth between 25 and 60 Hz (span of 35 Hz)…”
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Negative-charge-storing mechanism of potassium-ion SiO2-based electrets for vibration-powered generators by Nakanishi, Toru, Miyajima, Takeshi, Chokawa, Kenta, Araidai, Masaaki, Toshiyoshi, Hiroshi, Sugiyama, Tatsuhiko, Hashiguchi, Gen, Shiraishi, Kenji

“…A potassium-ion electret, which is a key element of vibration-powered microelectromechanical generators, can store negative charge almost permanently. However,…”
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An Electret-Augmented Low-Voltage MEMS Electrostatic Out-of-Plane Actuator for Acoustic Transducer Applications by Sano, Chikako, Ataka, Manabu, Hashiguchi, Gen, Toshiyoshi, Hiroshi

“…Despite the development of energy-efficient devices in various applications, microelectromechanical system (MEMS) electrostatic actuators yet require high…”
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Imaging of an Electret Film Fabricated on a Micro-Machined Energy Harvester by a Kelvin Probe Force Microscope by Nakazawa, Kenta, Fukazawa, Kengo, Uruma, Takeshi, Hashiguchi, Gen, Iwata, Futoshi

“…An imaging method for a highly charged material using a Kelvin probe force microscope (KFM) was developed. Energy harvesters generate electric energy from the…”
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Effect of carbon atoms on the reliability of potassium-ion electrets used in vibration-powered generators by Ohata, Yoshiki, Araidai, Masaaki, Shibata, Yasushi, Hashiguchi, Gen, Shiraishi, Kenji

“…Potassium-ion electrets, which are key elements in vibration-powered microelectromechanical generators, can store negative charge almost permanently. However,…”
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Power Generation Demonstration of Electrostatic Vibrational Energy Harvester with Comb Electrodes and Suspensions Located in Upper and Lower Decks by Honma, Hiroaki, Mitsuya, Hiroyuki, Hashiguchi, Gen, Fujita, Hiroyuki, Toshiyoshi, Hiroshi

“…In this paper, a vibrational energy harvester formed in a double-deck structure is presented. Comb electrodes covered with an electret skin are located in the…”
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Effect of hydrogen atoms on potassium-ion electrets used in vibration-powered generators by Ohata, Yoshiki, Araidai, Masaaki, Ishiguro, Takuma, Mitsuya, Hiroyuki, Toshiyoshi, Hiroshi, Shibata, Yasushi, Hashiguchi, Gen, Shiraishi, Kenji

“…Potassium-ion electrets, which are mainly composed of amorphous silica and potassium atoms, can accumulate negative charges and are expected to be useful for…”
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A Method to Determine the Electret Charge Potential of MEMS Vibrational Energy Harvester Using Pure-White Noise by Mitsuya, Hiroyuki, Ashizawa, Hisayuki, Shimomura, Noriko, Homma, Hiroaki, Hashiguchi, Gen, Toshiyoshi, Hiroshi

“…A high-speed measurement method has been developed to electrically determine the potential voltage of the permanent charge or electret formed in a MEMS…”
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Development of a Cantilever-Type Electrostatic Energy Harvester and Its Charging Characteristics on a Highway Viaduct by Koga, Hideaki, Mitsuya, Hiroyuki, Honma, Hiroaki, Fujita, Hiroyuki, Toshiyoshi, Hiroshi, Hashiguchi, Gen

“…We have developed a micro-electro-mechanical systems (MEMS) electrostatic vibratory power generator with over 100 μ W RMS of (root-mean-square) output electric…”
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MEMS electrostatic inductive transformer using potassium ion electrets for up- or down-conversion of AC current by Suzuki, Masato, Moriyama, Takashi, Toshiyoshi, Hiroshi, Hashiguchi, Gen

“…In this paper, we report on a novel MEMS electrostatic inductive transformer using potassium ion electrets on mechanically movable silicon microelectrodes. The…”
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A Bistable Comb-Drive Electrostatic Actuator Biased by the Built-In Potential of Potassium Ion Electret by Suzuki, Masato, Ashizawa, Hisayuki, Fujita, Yasuhide, Mitsuya, Hiroyuki, Sugiyama, Tatsuhiko, Ataka, Manabu, Toshiyoshi, Hiroshi, Hashiguchi, Gen

“…A new bistable micro-electro-mechanical systems actuator functioned by the potassium ion electret technique is presented. We utilize a three-terminal…”
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Reliability of potassium ion electret in silicon oxide for vibrational energy harvester applications by Misawa, Kensuke, Sugiyama, Tatsuhiko, Hashiguchi, Gen, Toshiyoshi, Hiroshi

“…In this paper, we report on the long-term reliability of potassium ion electret included in a thermally grown silicon oxide. The electret in this work is used…”
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Humidity Dependence of Charge Transport through DNA Revealed by Silicon-Based Nanotweezers Manipulation by Yamahata, Christophe, Collard, Dominique, Takekawa, Tetsuya, Kumemura, Momoko, Hashiguchi, Gen, Fujita, Hiroyuki

“…The study of the electrical properties of DNA has aroused increasing interest since the last decade. So far, controversial arguments have been put forward to…”
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Analytical Model for MEMS Electret Energy Harvester with Long-stroke Tip-sliding Electrodes by Tohyama, Yukiya, Honma, Hiroaki, Durand, Brieux, Sugiyama, Tatsuhiko, Hashiguchi, Gen, Toshiyoshi, Hiroshi

“…We develop an equivalent circuit model for a MEMS vibrational energy harvester that uses electrets or permanent electrical charges to generate electrostatic…”
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Single DNA Molecule Isolation and Trapping in a Microfluidic Device by Kumemura, Momoko, Collard, Dominique, Yamahata, Christophe, Sakaki, Naoyoshi, Hashiguchi, Gen, Fujita, Hiroyuki

“…This paper presents a systematic method to isolate and trap long single DNA segments between integrated electrodes in a microfluidic environment. Double…”
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A Fluidic Vibrational Energy Harvester for Implantable Medical Device Applications by INOUE, SATOSHI, TAKAHASHI, TAKUYA, KUMEMURA, MOMOKO, ISHIBASHI, KAZUNORI, FUJITA, HIROYUKI, HASHIGUCHI, GEN, TOSHIYOSHI, HIROSHI

“…SUMMARY In this paper, we report on a proof‐of‐concept level energy harvester device that could earn electric power of 0.093 μW/cm2 by the fluidic motion in a…”
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Modeling of Vibrating-Body Field-Effect Transistors Based on the Electromechanical Interactions Between the Gate and the Channel by Ueki, Shinji, Nishimori, Yuki, Imamoto, Hiroshi, Kubota, Tomohiro, Kakushima, Kuniyuki, Ikehara, Tsuyoshi, Sugiyama, Masakazu, Samukawa, Seiji, Hashiguchi, Gen

“…A coupled analysis method for the mechanical and electrical systems of vibrating-body field-effect transistors (VB-FETs) is described. To accommodate energy…”
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Fabrication of a micro needle for a trace blood test by Oka, Kazunari, Aoyagi, Seiji, Arai, Yasuhiko, Isono, Yoshitada, Hashiguchi, Gen, Fujita, Hiroyuki

“…A human being has pain and fear when pricked by a needle in a blood test. On the other hand, he has almost no pain and no fear when pricked by a needle of a…”
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Two orders agreement between stiffness measurement of µ-scale beam with analytical, macroscopic predictions by Sato, Takaaki, Hashiguchi, Gen, Fujita, Hiroyuki

“…Miniaturization technology for creating three-dimensional structures is constantly advancing, reaching a processing accuracy of several µm. Therefore, it is…”
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