Patents by Inventor Gen Hashiguchi
Gen Hashiguchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20150070941Abstract: An electrostatic induction conversion device includes: an input-side electrostatic actuator that includes a first fixed electrode and a first movable electrode facing the first fixed electrode; and an output-side electrostatic actuator that includes a second movable electrode linked to the first movable electrode via a link mechanism member, which increases or decreases a displacement quantity representing an extent of displacement occurring at the first movable electrode, and a second fixed electrode facing the second movable electrode, wherein: a permanently charged layer is deposited on an electrode surface either on a movable electrode side or on a fixed electrode side, at the input-side electrostatic actuator and the output-side electrostatic actuator.Type: ApplicationFiled: August 26, 2013Publication date: March 12, 2015Applicant: National University Corporation Shizuoka Universit yInventors: Masato Suzuki, Hiroki Hayashi, Gen Hashiguchi, Tatsuhiko Sugiyama
-
Patent number: 8770043Abstract: An object of this invention is to detect an external force or acceleration with good sensitivity using a simple configuration. An external force detection sensor comprises a comb electrode including a fixed electrode having a plurality of fixed combtooth portions and a movable electrode having a plurality of movable combtooth portions inserted between the fixed combtooth portions; a power supply connected to the fixed electrode and the movable electrode in order to cause vibration of the movable electrode at a prescribed resonance frequency through an electrostatic force on the fixed electrode; and detection means for detecting an external force based on a change in electrical characteristics between the fixed electrode and the movable electrode when the movable electrode is caused to vibrate.Type: GrantFiled: June 5, 2009Date of Patent: July 8, 2014Assignee: National University Corporation Shizuoka UniversityInventor: Gen Hashiguchi
-
Patent number: 8331212Abstract: According to one embodiment, a MEMS memory microprobe includes a probe tip, a lever, and a base. The probe tip is arranged to oppose a recording medium and is brought into contact with the recording medium to perform recording or reproduction of information when a current or voltage is applied between them. In the probe tip, a plurality of electrodes used in the recording or reproduction and a plurality of support portions which form the probe tip together with the electrodes are alternately arranged, and the electrodes and the support portions form a single plane which opposes the recording medium.Type: GrantFiled: January 28, 2011Date of Patent: December 11, 2012Assignees: Kabushiki Kaisha Toshiba, The University of TokyoInventors: Yongfang Li, Yasushi Tomizawa, Gen Hashiguchi, Masakazu Sugiyama
-
Publication number: 20120062213Abstract: According to one embodiment, a microprobe includes a supporting base, an insulating layer, and an electrode layer arrayed in a first direction in this order. A principal surface of the microprobe is formed in a second direction different from the first direction. A step is formed on at least the electrode layer on the principal surface, and the electrode layer is partitioned into a first area and a second area by the step.Type: ApplicationFiled: March 25, 2011Publication date: March 15, 2012Inventors: Yongfang Li, Yasushi Tomizawa, Akihiro Koga, Gen Hashiguchi, Masakazu Sugiyama
-
Publication number: 20110194398Abstract: According to one embodiment, a MEMS memory microprobe includes a probe tip, a lever, and a base. The probe tip is arranged to oppose a recording medium and is brought into contact with the recording medium to perform recording or reproduction of information when a current or voltage is applied between them. In the probe tip, a plurality of electrodes used in the recording or reproduction and a plurality of support portions which form the probe tip together with the electrodes are alternately arranged, and the electrodes and the support portions form a single plane which opposes the recording medium.Type: ApplicationFiled: January 28, 2011Publication date: August 11, 2011Inventors: Yongfang Li, Yasushi Tomizawa, Gen Hashiguchi, Masakazu Sugiyama
-
Publication number: 20110138931Abstract: An object of this invention is to detect an external force or acceleration with good sensitivity using a simple configuration. An external force detection sensor comprises a comb electrode including a fixed electrode having a plurality of fixed combtooth portions and a movable electrode having a plurality of movable combtooth portions inserted between the fixed combtooth portions; a power supply connected to the fixed electrode and the movable electrode in order to cause vibration of the movable electrode at a prescribed resonance frequency through an electrostatic force on the fixed electrode; and detection means for detecting an external force based on a change in electrical characteristics between the fixed electrode and the movable electrode when the movable electrode is caused to vibrate.Type: ApplicationFiled: June 5, 2009Publication date: June 16, 2011Inventor: Gen Hashiguchi
-
Patent number: 7849515Abstract: A nanotweezer (1) according to the present invention includes: a supporting member (25); an observation probe (10) that projects out from the supporting member (25), and is used when observing a surface of a specimen; a movable arm (20) that is arranged next to the observation probe (10) projecting out from the supporting member (25), and makes closed or opened between the observation probe (10) and the movable arm (20) to hold or release the specimen held between the observation probe (10) and the movable arm (20); and a drive mechanism that drives the movable arm (20) so as to make closed or opened between the observation probe (10) and the movable arm (20), and the supporting member (25), the observation probe (10) and the movable arm (20) are each formed by processing a semiconductor wafer (30) through a photolithography process.Type: GrantFiled: November 22, 2005Date of Patent: December 7, 2010Assignees: National University Corporation Kagawa University, AOI Electronics Co., Ltd.Inventors: Gen Hashiguchi, Maho Hosogi, Takashi Konno
-
Publication number: 20100129610Abstract: Silicon in prismatic shape is produced by using a silicon wafer with (110) surface and sequentially carrying out an alignment configuration forming step for forming alignment configurations having surfaces that are along two (111) surfaces perpendicular to a substrate surface inside the silicon wafer, a primary anisotropic etching step for forming perpendicular walls having wall surfaces aligned to one of these (111) surfaces, and a secondary anisotropic etching step for forming silicon in the prismatic shape having wall surfaces aligned to the other of these (111) surfaces with respect to the perpendicular walls.Type: ApplicationFiled: May 14, 2007Publication date: May 27, 2010Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITYInventors: Fumikazu Oohira, Gen Hashiguchi, Shinya Nagao
-
Publication number: 20090000362Abstract: A nanotweezer (1) according to the present invention includes: a supporting member (25); an observation probe (10) that projects out from the supporting member (25), and is used when observing a surface of a specimen; a movable arm (20) that is arranged next to the observation probe (10) projecting out from the supporting member (25), and makes closed or opened between the observation probe (10) and the movable arm (20) to hold or release the specimen held between the observation probe (10) and the movable arm (20); and a drive mechanism that drives the movable arm (20) so as to make closed or opened between the observation probe (10) and the movable arm (20), and the supporting member (25), the observation probe (10) and the movable arm (20) are each formed by processing a semiconductor wafer (30) through a photolithography process.Type: ApplicationFiled: November 22, 2005Publication date: January 1, 2009Applicants: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY, AOI ELECTRONICS CO., LTD.Inventors: Gen Hashiguchi, Maho Hosogi, Takashi Konno
-
Publication number: 20080061031Abstract: The nano-gripper of the present invention comprises (i) a pair of arms 71 and 71 disposed side by side, each arm 71 having a face at its front end, the front-end faces of the arms 71 and 71 facing each other, (ii) and a protrusion 72 with a tip formed on the front-end face of each arm, the tips of the protrusions 72 and 72 facing each other, the radius of curvature of each tip being 50 nanometers or less. Each protrusion 72 is a triangular-pyramidal silicon crystal with (001), (100), and (111) side faces.Type: ApplicationFiled: October 30, 2007Publication date: March 13, 2008Applicants: Techno Network Shikoku Co., Ltd., AOI Electronics Co., Ltd.Inventors: Gen Hashiguchi, Yutaka Mihara, Takeo Fukino, Takafumi Hara, Hiroyuki Fujita
-
Patent number: 7322622Abstract: The nano-gripper of the present invention comprises (i) a pair of arms 71 and 71 disposed side by side, each arm 71 having a face at its front end, the front-end faces of the arms 71 and 71 facing each other, (ii) and a protrusion 72 with a tip formed on the front-end face of each arm, the tips of the protrusions 72 and 72 facing each other, the radius of curvature of each tip being 50 nanometers or less. Each protrusion 72 is a triangular-pyramidal silicon crystal with (001), (100), and (111) side faces.Type: GrantFiled: April 28, 2004Date of Patent: January 29, 2008Assignees: Techno Network Shikoku Co., Ltd., AOI Electronics Co., Ltd.Inventors: Gen Hashiguchi, Yutaka Mihara, Takeo Fukino, Takafumi Hara, Hiroyuki Fujita
-
Publication number: 20050175670Abstract: The present invention has a purpose to provide a non-invasive drug delivery system made of biodegradable material slowly releasing a medicament for a prolonged period in a stable manner while embedded within a portion of a body where a flow of blood and/or lymph is rapid, and a manufacturing process thereof. The drug delivery system according to the present invention includes a tank member of biodegradable material having a chamber capable of holding a medicament. Also, it has at least one anchor member of biodegradable material extending from the tank member. The anchor member is tapered toward a tip thereof, and has at least one protruding portion extending therefrom.Type: ApplicationFiled: September 24, 2004Publication date: August 11, 2005Inventors: Seiji Aoyagi, Yoshitada Isono, Gen Hashiguchi
-
Publication number: 20050029827Abstract: The nano-gripper of the present invention comprises (i) a pair of arms 71 and 71 disposed side by side, each arm 71 having a face at its front end, the front-end faces of the arms 71 and 71 facing each other, (ii) and a protrusion 72 with a tip formed on the front-end face of each arm, the tips of the protrusions 72 and 72 facing each other, the radius of curvature of each tip being 50 nanometers or less. Each protrusion 72 is a triangular-pyramidal silicon crystal with (001), (100), and (111) side faces.Type: ApplicationFiled: April 28, 2004Publication date: February 10, 2005Inventors: Gen Hashiguchi, Yutaka Mihara, Takeo Fukino, Takafumi Hara, Hiroyuki Fujita
-
Patent number: 5358909Abstract: A field-emitter having stable electrical properties, a long service life and a very small electron emission voltage is provided. The cathode of the element has a strongly sharpened projection at the tip end, and a smooth connection between the projection and the body portion. In the method of manufacturing the elements, cathodes are produced with a high reproducibility by using a mold produced by forming concave portions in the silicon and oxidizing the layer thereon, whereby the spacing between the cathode and the gate electrode is determined by the thickness of the silicon oxide layer, and the position of the cathode is determined by the silicon oxide layer embedded in the silicon substrate, by using an etching stop method based on an electrochemical etching process.Type: GrantFiled: February 26, 1992Date of Patent: October 25, 1994Assignee: Nippon Steel CorporationInventors: Gen Hashiguchi, Satoshi Kanazawa, Kazuhiko Kawamura, Hikaru Sakamoto