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: 20100129610
    Abstract: 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: Application
    Filed: May 14, 2007
    Publication date: May 27, 2010
    Applicant: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY
    Inventors: Fumikazu Oohira, Gen Hashiguchi, Shinya Nagao
  • Publication number: 20090000362
    Abstract: 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: Application
    Filed: November 22, 2005
    Publication date: January 1, 2009
    Applicants: NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY, AOI ELECTRONICS CO., LTD.
    Inventors: Gen Hashiguchi, Maho Hosogi, Takashi Konno
  • Publication number: 20080061031
    Abstract: 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: Application
    Filed: October 30, 2007
    Publication date: March 13, 2008
    Applicants: Techno Network Shikoku Co., Ltd., AOI Electronics Co., Ltd.
    Inventors: Gen Hashiguchi, Yutaka Mihara, Takeo Fukino, Takafumi Hara, Hiroyuki Fujita
  • Patent number: 7322622
    Abstract: 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: Grant
    Filed: April 28, 2004
    Date of Patent: January 29, 2008
    Assignees: Techno Network Shikoku Co., Ltd., AOI Electronics Co., Ltd.
    Inventors: Gen Hashiguchi, Yutaka Mihara, Takeo Fukino, Takafumi Hara, Hiroyuki Fujita
  • Publication number: 20050175670
    Abstract: 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: Application
    Filed: September 24, 2004
    Publication date: August 11, 2005
    Inventors: Seiji Aoyagi, Yoshitada Isono, Gen Hashiguchi
  • Publication number: 20050029827
    Abstract: 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: Application
    Filed: April 28, 2004
    Publication date: February 10, 2005
    Inventors: Gen Hashiguchi, Yutaka Mihara, Takeo Fukino, Takafumi Hara, Hiroyuki Fujita
  • Patent number: 5358909
    Abstract: 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: Grant
    Filed: February 26, 1992
    Date of Patent: October 25, 1994
    Assignee: Nippon Steel Corporation
    Inventors: Gen Hashiguchi, Satoshi Kanazawa, Kazuhiko Kawamura, Hikaru Sakamoto