Patents by Inventor Koji Nakagawa

Koji Nakagawa 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: 20140267877
    Abstract: A zoom lens includes a first positive lens unit, a first negative lens unit, a stop, and a second positive lens unit, and at the time of zooming, the first positive lens unit is stationary, the first negative lens unit and the second positive lens unit move, and at the time of focusing, the first positive lens unit is stationary, and the first positive lens unit includes a reflecting member and a first positive lens unit object-side system, and the first positive lens unit-object side system is positioned on the object side of the reflecting member, and has a negative refractive power, and the following conditional expressions are satisfied. 3.7<ft/fw 1.55<|D1N/D2P|<2.5 1.75<|f2P/D2P|<2.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Applicants: OLYMPUS CORPORATION, OLYMPUS IMAGING CORP.
    Inventors: Koji Nakagawa, Koki Hozumi, Akiko Naito, Takeshi Hosoya
  • Publication number: 20130338051
    Abstract: The present invention provides a method for producing a chemically strengthened glass for a display device, which is capable of suppressing generation of concave defects. The present invention relates to a method for producing a chemically strengthened glass substrate for a display device, in which a calcium concentration in a cleaning liquid used in a final cleaning step before a chemical strengthening step is 5 ppm or less.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 19, 2013
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Shuji Matsumoto, Tsuguhide Isemura, Koji Nakagawa, Kazutaka Ono, Shusaku Akiba, Haruo Aizawa
  • Publication number: 20130286276
    Abstract: An image pickup apparatus includes a zoom lens and an image pickup element. The zoom lens includes a first positive lens unit, a first negative lens unit, a stop, and a second positive lens unit. For zooming, the first positive lens unit is stationary, the first negative lens unit moves, and the second positive lens unit moves. A position at a telephoto end of the first negative lens unit is on the image side of a position at the wide angle end. A position at a telephoto end of the second positive lens unit is on the object side of a position at the wide angle end. For focusing, the first positive lens unit is stationary. A first positive lens unit object-side system has a negative refractive power. A first positive lens unit image-side system has a positive refractive power. The image pickup apparatus satisfies predetermined conditional expressions.
    Type: Application
    Filed: April 22, 2013
    Publication date: October 31, 2013
    Applicant: Olympus Imaging Corp.
    Inventors: Kazuteru Kawamura, Masaru Morooka, Koji Nakagawa, Toshio Takahashi
  • Patent number: 8564711
    Abstract: A zoom lens includes a first lens group of positive refractive power; a second lens group of negative power; a third lens group of positive power; a fourth lens group of negative power, and a fifth lens group of positive power arranged from the object side to the image side. At activation of variable power from the wide angle end to the telescopic end, the first, third, fourth and fifth lens groups moves so as to get closer to the object side or the image side at the telescopic end than at the wide angle end; and a gap between the first lens group and the second lens group increases; a gap between the second lens group and the third lens group decreases; a gap between the third lens group and the forth lens group increases; and a gap between the forth lens group and the fifth lens group increases.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: October 22, 2013
    Assignee: Olympus Imaging Corp.
    Inventors: Masaru Morooka, Kazuteru Kawamura, Koki Hozumi, Hideyuki Nagaoka, Koji Nakagawa
  • Publication number: 20130235468
    Abstract: A zoom lens comprises in order from an object side a first lens unit having a positive refractive power. The first lens unit consist one positive lens. The zoom lens satisfies the following conditional expressions (1) and (2). Fno(W)<2.7??(1) 3.1<ft/fw where, Fno(W) denotes an F-number of the zoom lens at a wide angle end, ft denotes a focal length at a telephoto end of the overall zoom lens system, and fw denotes a focal length at the wide angle end of the overall zoom lens system.
    Type: Application
    Filed: January 31, 2013
    Publication date: September 12, 2013
    Applicant: OLYMPUS IMAGING CORP.
    Inventors: Tetsuya Yanai, Mayu Miki, Minoru Ueda, Koji Nakagawa, Toyoki Kon
  • Patent number: 8418359
    Abstract: A method for manufacturing a circuit pattern-provided substrate including forming a resist layer on a substrate, forming an opening corresponding to a circuit pattern and having an eaves cross-sectional shape in the resist layer, forming a thin film layer having a portion formed on the substrate in the opening and a portion formed on the resist layer, and removing the resist layer such that the resist layer and the portion of the thin film layer formed on the resist layer are removed from the substrate. The forming of the opening comprises exposing the resist layer with a mask device which changes an exposure amount of the resist layer such that the eaves cross-sectional shape has a space at a boundary between the resist layer and the substrate.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: April 16, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Ryohei Satoh, Koji Nakagawa, Eiji Morinaga, Reo Usui, Kenji Tanaka, Satoru Takaki, Kenichi Ebata, Hiroshi Sakamoto
  • Patent number: 8409431
    Abstract: Intended is to reduce pressure fluctuations across a filter (14) for filtering a resist liquid. A charging apparatus is provided including a charge liquid tank (2) of resist liquid, a feed pump (10), a charge nozzle (8), a recovery passage (16), a recovery valve (20) disposed in the recovery passage (16), the filter (14), and a control device (24) for controlling the servomotors to adjust the openings of the charge valve (12) and the recovery valve (20) so that the pressures on the upstream side and the downstream side of the filter (14) may not fluctuate.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: April 2, 2013
    Assignee: Tokyo Ohka Kogyo Co., Ltd.
    Inventors: Koji Nakagawa, Masaaki Muroi, Shinichi Torigoe, Fumihiro Nagaike, Ryohei Nakamura, Kenichi Higashi, Tsuyoshi Gouda
  • Publication number: 20120240626
    Abstract: The present invention relates to a process for producing a chemically strengthened glass substrate for a display device, the process including a pre-heating step of pre-heating a glass to a pre-heating temperature and subsequently an ion exchange step of immersing the glass in a chemical strengthening liquid, in which the pre-heating temperature in the pre-heating step and a strain point of the glass satisfy: 220° C.?(strain point?pre-heating temperature).
    Type: Application
    Filed: March 23, 2012
    Publication date: September 27, 2012
    Applicant: Asahi Glass Company, Limited
    Inventors: Syuji MATSUMOTO, Tsuguhide Isemura, Koji Nakagawa, Kazutaka Ono, Shusaku Akiba, Haruo Aizawa
  • Publication number: 20120197514
    Abstract: A control section starts cranking of an engine with a first opening degree upon detection of a first operation signal, and, if the engine has reached a predetermined number of rotations through a predetermined number of times of the cranking with the first opening degree, the control section starts running of the engine in a first mode corresponding to the first opening degree. If the engine has not reached the predetermined number of rotations through the predetermined number of times of the cranking with the first opening degree, the control section starts cranking with a second opening degree, and, if the engine has reached the predetermined number of rotations through the predetermined number of times of the cranking with the second opening degree, the control section starts running of the engine in a second mode corresponding to the second opening degree.
    Type: Application
    Filed: January 5, 2012
    Publication date: August 2, 2012
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yasuhide Ono, Yoichi Yamamura, Koji Nakagawa
  • Publication number: 20120194730
    Abstract: A zoom lens includes a first lens group of positive refractive power; a second lens group of negative power; a third lens group of positive power; a fourth lens group of negative power, and a fifth lens group of positive power arranged from the object side to the image side. At activation of variable power from the wide angle end to the telescopic end, the first, third, fourth and fifth lens groups moves so as to get closer to the object side or the image side at the telescopic end than at the wide angle end; and a gap between the first lens group and the second lens group increases; a gap between the second lens group and the third lens group decreases; a gap between the third lens group and the forth lens group increases; and a gap between the forth lens group and the fifth lens group increases.
    Type: Application
    Filed: January 24, 2012
    Publication date: August 2, 2012
    Inventors: Masaru MOROOKA, Kazuteru Kawamura, Koki Hozumi, Hideyuki Nagaoka, Koji Nakagawa
  • Publication number: 20120100774
    Abstract: An object of the invention is to provide a method for manufacturing a transparent substrate provided with a tin oxide thin film which can be satisfactorily patterned even by irradiation with a laser light having low energy because an ablation phenomenon occurs therewith. The invention relates to a method for manufacturing a transparent substrate bearing a circuit pattern, which comprises irradiating a thin-film-attached transparent substrate comprising a transparent substrate having thereon a transparent conductive film having a carrier concentration of 5×1019/cm3 or higher, with a laser light having a wavelength of 1,064 nm to form a circuit pattern on the transparent substrate.
    Type: Application
    Filed: January 3, 2012
    Publication date: April 26, 2012
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Ryohei SATOH, Koji Nakagawa, Eiji Morinaga, Reo Usui, Takamitsu Isono, Kenji Tanaka, Satoru Takaki, Kenichi Ebata, Hiroshi Sakamoto
  • Patent number: 7846641
    Abstract: A process for producing a glass substrate having a circuit pattern is disclosed. The process includes forming a thin film layer on a glass substrate and then irradiating the thin film layer with laser light to form a circuit pattern on the glass substrate; depositing a low-melting point glass having a softening point of from 450 to 630° C. on the glass substrate having the circuit pattern formed thereon; and sintering the low-melting point glass to form a low-melting point glass layer which includes the low-melting point glass sintered on the glass substrate having the circuit pattern formed thereon and which forms a compatible layer between the glass substrate and the low-melting point glass layer.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: December 7, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Ryohei Satoh, Koji Nakagawa, Reo Usui, Kenji Tanaka, Satoru Takaki, Kenichi Ebata, Yumiko Aoki
  • Publication number: 20100236998
    Abstract: Intended is to reduce pressure fluctuations across a filter (14) for filtering a resist liquid.
    Type: Application
    Filed: September 25, 2008
    Publication date: September 23, 2010
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Koji Nakagawa, Masaaki Muroi, Shinichi Torigoe, Fumihiro Nagaike, Ryohei Nakamura, Kenichi Higashi, Tsuyoshi Gouda
  • Patent number: 7790358
    Abstract: There is provided a method for forming a continuous thin film circuit pattern with good precision, at low cost and with low environmental burden; an electronic circuit fabricated by the same, and an electronic device including the same. There are a step for forming a mask layer 2 on a substrate 1; a step for forming an opening pattern in the mask layer 2; a step for forming a thin film 3 on the substrate 1 and on the mask layer 2; and a step for removing, from the substrate 1, the mask layer 2 and a portion of the thin film 3 formed on the mask layer 2; wherein the opening pattern is formed under a dry condition.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: September 7, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Ryohei Satoh, Yoshinori Iwata, Koji Nakagawa, Reo Usui
  • Patent number: 7772778
    Abstract: To provide a method for forming electrodes and/or black stripes for a plasma display substrate, wherein display electrodes, bus electrodes and optionally black stripes for a plasma display panel are formed of the same material by the same dry step, whereby a clear image having reflection prevented, can be displayed on a PDP display device with a low load on the environment, at low costs, with low resistance, without erosion by a dielectric. A method for forming electrodes and/or black stripes for a plasma display substrate, which comprises applying a laser beam to a mask layer formed on a transparent substrate to form openings at areas corresponding to the respective patterns of display electrodes, bus electrodes and optionally black stripes, then continuously forming an antireflection layer to provide an antireflection effect over the entire surface and an electrode layer, and applying again a laser beam to peel off the mask layer and at the same time to remove an unnecessary thin film layer.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: August 10, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Ryohei Satoh, Yoshinori Iwata, Koji Nakagawa, Kenji Tanaka, Satoru Takaki
  • Publication number: 20090238898
    Abstract: Helicobacter pylori strains are indigenous to each human host and infect and colonize in the stomach of the host, and they are also known to be involved in diseases of the upper gastrointestinal tracts, among others. The present invention provides an economical method for inhibiting the proliferation and migration of Helicobacter pylori strains without being concerned about emergence of resistant bacteria or side effects due to drugs traditionally used to remove Helicobacter pylori strains, as well as a beverage or food utilizing such method, by selecting from among mineral-rich waters obtained from deep sea water, and by ingesting, a water or waters capable of inhibiting the proliferation and migration of Helicobacter pylori strains that are indigenous to the host and infecting and colonized in the stomach of the host.
    Type: Application
    Filed: September 25, 2006
    Publication date: September 24, 2009
    Inventors: Hiroaki Takeuchi, Yoshinari Ikegami, Takeshi Yasukawa, Koji Nakagawa
  • Publication number: 20090205851
    Abstract: The present invention is to provide a method for manufacturing a circuit pattern-provided transparent substrate having a circuit pattern which is free from pattern peeling and remaining of resist and has good pattern precision and which does not cause disconnection when used as an electrode of an electron circuit or the like.
    Type: Application
    Filed: February 2, 2009
    Publication date: August 20, 2009
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Ryohei SATOH, Koji Nakagawa, Eiji Morinaga, Reo Usui, Kenji Tanaka, Satoru Takaki, Kenichi Ebata, Hiroshi Sakamoto
  • Publication number: 20080311359
    Abstract: The invention provides a process for producing a glass substrate (10) having a circuit pattern (26), which includes a circuit pattern formation step of forming a thin film layer (12) on a glass substrate and then irradiating the thin film layer with laser light (22) to form a circuit pattern on the glass substrate; a low-melting point glass deposition step of depositing a low-melting point glass (28) having a softening point of from 450 to 630° C. on the glass substrate having the circuit pattern formed thereon; and a sintering step of sintering the low-melting point glass to form a low-melting point glass layer (32) comprising the low-melting point glass sintered on the glass substrate having the circuit pattern formed thereon and to form a compatible layer (34) between the glass substrate and the low-melting point glass layer.
    Type: Application
    Filed: June 20, 2008
    Publication date: December 18, 2008
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Ryohei SATOH, Koji NAKAGAWA, Reo USUI, Kenji TANAKA, Satoru TAKAKI, Kenichi EBATA, Yumiko AOKI
  • Patent number: D704645
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: May 13, 2014
    Assignees: Hitachi, Ltd., Japan Aviation Electronics Industry, Limited
    Inventors: Rika Nomura, Koji Nakagawa, Norio Chujo, Yuichi Koreeda
  • Patent number: D705172
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: May 20, 2014
    Assignees: Hitachi, Ltd., Japan Aviation Electronics Industry, Limited
    Inventors: Rika Nomura, Koji Nakagawa, Norio Chujo, Yuichi Koreeda