Patents by Inventor Yuichi Ohga

Yuichi Ohga 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).

  • Patent number: 9616807
    Abstract: A vehicle component includes a molded cover molded into a shape of a surface of a part attached to a vehicle and a surface-emitting device bonded or fitted and fixed along a back face of the molded cover. The molded cover is vacuum formed by solid decorative molding of a translucent resin molded member with a translucent film, and light from the surface-emitting device is transmitted through the molded cover and emerges in a predetermined light-emitting area which is a part of a surface of the vehicle component. The vehicle component obtains a light-emitting function with a relatively simple structure and in a relatively compact form with a design not impaired and excellent in beauty and appearance.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: April 11, 2017
    Assignees: FU-SE VACUUM FORMING CO., LTD., KOHKI CO., LTD.
    Inventors: Takayuki Miura, Yoshihiro Kamiike, Yuichi Ohga
  • Publication number: 20140204599
    Abstract: A vehicle component includes a molded cover molded into a shape of a surface of a part attached to a vehicle and a surface-emitting device bonded or fitted and fixed along a back face of the molded cover. The molded cover is vacuum formed by solid decorative molding of a translucent resin molded member with a translucent film, and light from the surface-emitting device is transmitted through the molded cover and emerges in a predetermined light-emitting area which is a part of a surface of the vehicle component. The vehicle component obtains a light-emitting function with a relatively simple structure and in a relatively compact form with a design not impaired and excellent in beauty and appearance.
    Type: Application
    Filed: August 8, 2012
    Publication date: July 24, 2014
    Applicants: Fu-se Vacuum Forming CO., LTD., KOHKI CO., LTD.
    Inventors: Takayuki Miura, Yoshihiro Kamiike, Yuichi Ohga
  • Patent number: 7486862
    Abstract: A core rod is inserted into a cladding pipe, moisture in a space between the core rod and the cladding pipe is removed, and an optical fiber is drawn while the space is connected to a dry-gas atmosphere and/or being decompressed and while the core rod and the cladding pipe are being unified with each other. Alternatively, the core rod is inserted into the cladding pipe, and an optical fiber is drawn from one end while moisture on the surface of the core rod and the internal surface of the cladding pipe is being removed. Accordingly, a high quality optical fiber is manufactured with good productivity.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: February 3, 2009
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yuichi Ohga, Masashi Onishi, Osamu Kasuu, Shuichiro Kato, Toru Adachi, Takashi Sasaki, Masaaki Hirano
  • Publication number: 20080107385
    Abstract: A core rod is inserted into a cladding pipe, moisture in a space between the core rod and the cladding pipe is removed, and an optical fiber is drawn while the space is connected to a dry-gas atmosphere and/or being decompressed and while the core rod and the cladding pipe are being unified with each other. Alternatively, the core rod is inserted into the cladding pipe, and an optical fiber is drawn from one end while moisture on the surface of the core rod and the internal surface of the cladding pipe is being removed. Accordingly, a high quality optical fiber is manufactured with good productivity.
    Type: Application
    Filed: May 18, 2004
    Publication date: May 8, 2008
    Inventors: Yuichi Ohga, Masashi Onishi, Osamu Kasuu, Shuichiro Kato, Toru Adachi, Takashi Sasaki, Masaaki Hirano
  • Patent number: 7194171
    Abstract: A dispersion compensating optical fiber comprises a minimum wavelength at which an increase amount of an actual loss value with respect to a theoretical loss value is not less than 10 mdB/km in a use wavelength band and on a long wavelength side of the use wavelength band. The actual loss value is measured in a state that the fiber is looped around a bobbin. The minimum wavelength falls within a range of 1,565 to 1,700 nm. This dispersion compensating optical fiber is suitably used for an optical transmission line of a large-capacity high-speed WDM optical transmission system.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: March 20, 2007
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Masao Tsukitani, Eisuke Sasaoka, Eiji Yanada, Yuichi Ohga
  • Patent number: 7143608
    Abstract: A concentric multi-tubular burner for synthesizing glass particles having a center port group constituted by a combination of jet ports of raw material gas, combustible gas and oxygen gas, wherein an outer wall of the oxygen gas jet port in the center port group protrudes more toward a burner head than an inner wall of the oxygen gas jet port. The flow rate of oxygen gas jetted from the oxygen gas jet port of the center port group is controlled to be in a proper range.
    Type: Grant
    Filed: March 4, 2004
    Date of Patent: December 5, 2006
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Tadashi Enomoto, Yuichi Ohga, Nobuya Akaike, Haruhiko Aikawa, Takashi Matsuo, Motonori Nakamura
  • Publication number: 20060101861
    Abstract: A drawing apparatus 1 comprises a drawing furnace 11, a heating furnace 21, and a resin curing section 31. An optical fiber 3 drawn upon heating in the drawing furnace 11 is sent to a heating furnace 21, where a predetermined part of the optical fiber 3 is annealed at a predetermined cooling rate. The temperature of a heater 22 of the heating furnace 21 at the furnace center is set to a temperature within the range from 1200 to 1600° C. Thereafter, the optical fiber 3 is coated with a UV resin liquid 52 by a coating die 51, and the UV resin 52 is cured in the resin curing section 31, so as to yield a coated optical fiber 4.
    Type: Application
    Filed: October 7, 2005
    Publication date: May 18, 2006
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Katsuya Nagayama, Tatsuhiko Saitoh, Yuichi Ohga, Kazuya Kuwahara
  • Publication number: 20050262875
    Abstract: In a method of manufacturing the glass tube of the invention, a glass tube having an inner diameter of a predetermined size is formed by forming a softened portion by heating a glass material and inserting an inner forming member to the softened portion. An outer diameter of the softened portion is formed into an outer diameter of a predetermined size by bringing an outer forming member movable in a direction orthogonal to a longitudinal direction axis of the glass material into contact with an outer circumference of the softened portion.
    Type: Application
    Filed: March 17, 2005
    Publication date: December 1, 2005
    Inventors: Kohji Kusunoki, Shuichiro Kato, Yuichi Ohga
  • Patent number: 6928840
    Abstract: A drawing apparatus 1 comprises a drawing furnace 11, a protecting tube 21, and a resin curing unit 31. A buffer chamber 41 is disposed between the drawing furnace 11 and the protecting tube 21, and has a length L1 in the drawing direction of the optical fiber 3. The buffer chamber 41 is constituted by a first buffer cell 42 and a second buffer cell 45. In the space within the buffer chamber 41, an He gas, which is an atmosphere gas within the drawing furnace 11, and the air, which is an atmosphere gas within the protecting tube 21, exist in a mixed state. The optical fiber 3 drawn upon heating in the drawing furnace 11 is fed to the protecting tube 21, and a predetermined part of the optical fiber 3 is annealed at a predetermined cooling rate. Thereafter, a coating die 62 coats the optical fiber 3 with a UV resin solution 63, and the resin curing unit 31 cures the UV resin 63, whereby a coated optical fiber 4 is obtained.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: August 16, 2005
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Katsuya Nagayama, Yuichi Ohga, Kazuya Kuwahara, Ichiro Tsuchiya
  • Patent number: 6895783
    Abstract: A plurality of glass particles synthesizing burners are arranged at a predetermined burner interval opposite to a rotating starting rod. The starting rod and the glass particles synthesizing burners are relatively parallely reciprocally moved, and the soot deposition is conducted. A reciprocating speed v(mm/minute), axis rotating speed r (rpm), and burner interval L (mm) are set so that a value A expressed by the expression A=(r/v)×L is in a range 40?A?8.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: May 24, 2005
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Toshihiro Ohishi, Yuichi Ohga, Motonori Nakamura
  • Patent number: 6889529
    Abstract: A method for producing an optical fiber preform is provided in which the variation of the outer diameter in the longitudinal direction is minimized and a target quantity of glass is accumulated as a whole. Based on a predetermined relationship between three variables: the outer diameter of a starting rod being a first variable, the outer diameter of an optical fiber preform a second variable, and the timing for ending the glass particles depositing process a third variable, the starting rod and burners are subjected to relative reciprocating movement so as to deposit glass particles on the starting rod until the timing for ending the depositing process, and then the resulting deposit body is vitrified. The third variable may be the traverse velocity, the glass particles deposition time, or the weight of a soot glass deposit body.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: May 10, 2005
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Toshihiro Ooishi, Yuichi Ohga, Yoshio Yokoyama, Motonori Nakamura
  • Publication number: 20050081565
    Abstract: An object of the present invention is to provide a method of highly purifying a glass body, which enables high purification of the glass body while decreasing deformation of the glass body at a high degree, to provide a highly purified glass body, and to provide a method and an apparatus for manufacturing a glass tube, which can obtain a highly purified glass tube. A method of highly purifying a glass body according to the present invention is to apply a voltage between electrodes 1 and 2, which make contact with the glass pipe 11, in a nearly radial direction of the glass pipe 11 while heating the glass pipe 11 to a temperature within a range less than 1300° C.
    Type: Application
    Filed: August 8, 2003
    Publication date: April 21, 2005
    Applicant: Sumitomo Electric Industrial Co. Ltd,
    Inventors: Shuichiro Kato, Tomomi Moriya, Yuichi Ohga
  • Patent number: 6851282
    Abstract: A drawing apparatus 1 has a drawing furnace 11, a heating furnace 21, and a resin curing section 31. The drawing furnace 11 has a muffle tube 13 to which an He gas supply passage 15 from an He gas supply section 14 is connected so as to supply He gas. The optical fiber 3 drawn upon heating by the drawing furnace 11 is fed to the heating furnace 21, whereby a predetermined part of the optical fiber 3 is annealed at a predetermined cooling rate. The heating furnace 21 has a muffle tube 23 to which an N2 gas supply passage 25 from an N2 gas supply section 24 is connected so as to supply N2 gas. Thereafter, the optical fiber 3 is coated with a UV resin 39 by a coating die 38, and the UV resin 39 is cured in the resin curing section 31, whereby a coated optical fiber 4 is formed.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: February 8, 2005
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Katsuya Nagayama, Yuichi Ohga, Tatsuhiko Saitoh, Hiroshi Takamizawa
  • Patent number: 6845636
    Abstract: A dehydration and consolidation furnace and a dehydration and consolidation method in which gas in a chamber does not leak to a furnace body room and gas in a furnace body room does not leak into a chamber is provided. A furnace of one embodiment of this invention has first muffle tube 3 and second muffle tube 4. The second muffle tube 4 is arranged coaxially around the first muffle tube 3. An optical fiber preform is arranged in this furnace. During the dehydration and consolidation process the pressure of the intermediate room 10 is set lower than a pressure inside the first muffle tube and outside the second muffle tube, and a gas supply and exhaust of the intermediate room 10 are performed independent of the gas supply and exhaust of the first muffle tube and a furnace body room.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: January 25, 2005
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Takashi Yamazaki, Takashi Kogo, Yuichi Ohga, Tadashi Enomoto
  • Patent number: 6837077
    Abstract: Three or more glass particle synthesizing burners are arranged to be opposed to a rotating glass rod. The glass rod and the glass particle synthesizing burners are reciprocated in parallel and relatively to deposit glass particles synthesized by the burners on the surface of the glass rod, thereby producing a soot body. The glass particle synthesizing conditions of the burners arranged at both ends are changed to have a greater deposition amount of glass particles per unit time in part or all of its movement range than other burners.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: January 4, 2005
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Motonori Nakamura, Toshihiro Ooishi, Yuichi Ohga
  • Patent number: 6807823
    Abstract: A process for producing fluorine-containing glass. An SiO2 soot is synthesized by hydrolyzing SiCl4. The soot is heated in a chlorine-compound-free atmosphere containing a fluorine compound gas to form a fluorine-containing silica glass. The glass contains not more than 10 ppm OH group, not more than 10 ppm Cl, and not less than 1,000 ppm F. The concentration ratio of F/Cl is 10,000 or more.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: October 26, 2004
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Yuichi Ohga, Tadashi Enomoto
  • Publication number: 20040172977
    Abstract: A method of producing a glass particle-deposited body having a reduced amount of longitudinal diameter fluctuations with few imperfect points. The method comprises the steps of (a) synthesizing glass particles with at least one burner and (b) moving the at least one burner, a starting material, or both so that the glass particles can adhere onto the surface of the starting material to be deposited there. Two types of vertical spaces in a reaction container are defined; one is the space in which the at least one burner, the starting material's surface onto which the glass particles are to adhere, or both move, and the other is the space enclosed by (a) the position of the at least one burner, (b) the position at which the extended center axis of the at least one burner intersects the opposite wall of the reaction container, and (c) the position of the at least one gas-discharging port.
    Type: Application
    Filed: March 2, 2004
    Publication date: September 9, 2004
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Motonori Nakamura, Toshihiro Ooishi, Tatsuro Sakai, Yuichi Ohga
  • Publication number: 20040168472
    Abstract: A concentric multi-tubular burner for synthesizing glass particles having a center port group constituted by a combination of jet ports of raw material gas, combustible gas and oxygen gas, wherein an outer wall of the oxygen gas jet port in the center port group protrudes more toward a burner head than an inner wall of the oxygen gas jet port. The flow rate of oxygen gas jetted from the oxygen gas jet port of the center port group is controlled to be in a proper range.
    Type: Application
    Filed: March 4, 2004
    Publication date: September 2, 2004
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Tadashi Enomoto, Yuichi Ohga, Nobuya Akaike, Haruhiko Aikawa, Takashi Matsuo, Motonori Nakamura
  • Publication number: 20040129030
    Abstract: The present invention relates to a method of making a glass tube. In the method, a diameter expanding member is inserted through a hole in a tubular glass blank so as to expand the diameter of the hole while the temperature of the glass blank is controlled to be more than or equal to the softening point. The tubular glass blank may be a purchased product or a self-made product. In the above-mentioned method of making a glass tube, the diameter of the hole in the glass blank may be expanded while at least the rear end of the diameter expanding member is supported. The diameter of the hole in the glass blank may be expanded while both ends of the diameter-expanding member are supported. The present invention also relates to an apparatus for manufacturing a glass tube.
    Type: Application
    Filed: November 6, 2003
    Publication date: July 8, 2004
    Inventors: Haruyoshi Tanada, Motonori Nakamura, Yuichi Ohga, Tadashi Enomoto, Masaaki Hirano, Masashi Onishi, Kazuyuki Soma, Tomomi Moriya, Eiji Yanada
  • Patent number: 6748769
    Abstract: A plurality of glass particle synthesizing burners are disposed opposite to a rotating starting rod. The starting rod and the glass particle synthesizing burners are relatively reciprocally moved to each other in parallel to the axial direction, so that glass particles synthesized by the burners are sequentially deposited on the surface of the starting rod. The movement is stopped and restarted repeatedly once or more than once during one reciprocal movement.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: June 15, 2004
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Toshihiro Ooishi, Yuichi Ohga, Yoshio Yokoyama, Motonori Nakamura