Patents by Inventor Koichiro Nakamura

Koichiro Nakamura 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: 7620757
    Abstract: A contents transfer system which includes a transmitter for transmitting a compressed contents via a network, and a terminal for inputting the contents transmitted from the transmitter via the network and outputting the input contents to a recording/reproducing media according to user's specification. A user can acquire the contents within the recording/reproducing media.
    Type: Grant
    Filed: March 6, 2006
    Date of Patent: November 17, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Katsumata, Koichiro Nakamura, Naoki Otomo, Hitoshi Suzuki, Masanori Yoshino, Yoshihiro Hayashi, Kenichi Katsumata
  • Publication number: 20090162921
    Abstract: The detoxification method characterized by comprising converting at least one member selected from the group comprising arsenic, antimony and selenium into a harmless substance produced in a food chain system by using the food chain system. The method of detoxifying a harmful compound as described above is characterized by comprising converting a harmful compound containing at least one element selected from the group comprising arsenic, antimony, and selenium into a harmless substance by using a food chain system containing a larval zooplankton.
    Type: Application
    Filed: July 11, 2006
    Publication date: June 25, 2009
    Applicant: Nippon Sheet Glass Company, Limited
    Inventors: Koji Fujita, Akihiro Hishinuma, Shinji Kamiya, Koichiro Nakamura, Takakiyo Tada, Hiroshi Yamauchi
  • Publication number: 20080145918
    Abstract: It is an object of the present invention to provide a method for the safe and effective detoxification of a hazardous compound containing the arsenic and or the like. The method for the detoxification of a hazardous compound according to the present invention is characterized in that the hazardous compound containing at lest one element selected from the groups comprising arsenic, antimony and selenium is converted to a harmless substance produced by the food chain system.
    Type: Application
    Filed: December 28, 2005
    Publication date: June 19, 2008
    Applicant: Nippon Sheet Glass Company, Limited
    Inventors: Akihiro Hishinuma, Koji Fujita, Koichiro Nakamura, Shinji Kamiya, Takakiyo Tada, Hiroshi Yamauchi
  • Publication number: 20070055013
    Abstract: A substrate for the immobilization of proteins is made by treating a carrier with an amino group-containing silicon compound represented by the following general formula: (RO)3Si—(CH2)k—(C6H4)1—(CH2)m—(NHCH2CH2)n—NH2 (wherein R is an alkyl group, and k is 1, 2, 3 . . . , l is 0, 1, 2, 3 . . . , m is 0, 1, 2, 3 . . . , and n is 1, 2, 3 . . . ).
    Type: Application
    Filed: February 21, 2006
    Publication date: March 8, 2007
    Inventors: Noriho Kamiya, Masahiro Goto, Satoshi Doi, Koichiro Nakamura, Noriyuki Kawata, Koji Fujita, Koki Tanamura
  • Publication number: 20060224765
    Abstract: A contents transfer system which includes a transmitter for transmitting a compressed contents via a network, and a terminal for inputting the contents transmitted from the transmitter via the network and outputting the input contents to a recording/reproducing media according to user's specification. A user can acquire the contents within the recording/reproducing media.
    Type: Application
    Filed: March 6, 2006
    Publication date: October 5, 2006
    Inventors: Kenji Katsumata, Koichiro Nakamura, Naoki Otomo, Hitoshi Suzuki, Masanori Yoshino, Yoshihiro Hayashi, Kenichi Katsumata
  • Publication number: 20060170915
    Abstract: A masking pattern is performed on a substrate by using materials that are weakly adhered to the substrate, and then the masked substrate is etched. Since the mask is weakly adhered to the substrate, the mask is peeled off from the surface of the substrate, so that a gap is generated between the mask and the substrate, and then anisotropic etching is performed. According to this method, it is possible to easily manufacture an optical measurement substrate having recesses whose sectional shape can be approximated to a curve having inflection points. Therefore, optical characteristics of a minute amount of substances can be evaluated efficiently without the loss of incident and reflected light even when measuring light is incident at an angle of less than 45 degrees.
    Type: Application
    Filed: January 30, 2006
    Publication date: August 3, 2006
    Inventors: Koichiro Nakamura, Koji Fujita, Koki Tanamura, Yasunori Arima
  • Publication number: 20060165351
    Abstract: An optical device unit including optical fibers for input and output, a lens and a reflective/semitransparent optical element, wherein, to enable optical design with a degree of freedom, lenses the number of which is the same as the optical fibers for input and output are provided and the optical fibers, the lenses and the reflective/semitransparent optical element are disposed so that the input/output end of each optical fiber, the optical axis center of the lens and reflection/transmission point on the reflective/semitransparent optical element are aligned.
    Type: Application
    Filed: June 16, 2003
    Publication date: July 27, 2006
    Applicant: NIPPON SHEET GLASS CO., LTD.
    Inventors: Kenjiro Hamanaka, Koichiro Nakamura, Satoshi Wada
  • Patent number: 7029831
    Abstract: A process for producing an optical element which has excellent heat resistance and adhesion to a substrate. This process comprises applying a liquid composition for forming an optical element to the molding surface of a substrate having a regular pattern surface consisting of areas having high wettability and areas having low wettability as the molding surface and curing the composition to form projections in the areas having high wettability. A solution containing at least one compound selected from the group consisting of a hydrolyzable compound which can be hydrolyzed and polycondensed and a hydrolyzed/polycondensed product thereof is used as the liquid composition for forming an optical element.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: April 18, 2006
    Assignees: Nippon Sheet Glass Co., Ltd.
    Inventors: Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda, Mitsuhiro Kawazu, Hiroaki Yamamoto, Koichiro Nakamura
  • Patent number: 7006291
    Abstract: The optical device having a predetermined surface profile of the invention is fabricated by forming a multi-layered dielectric film on the surface of a solid composition layer having a glass transition temperature of not lower than 100° C. The solid composition layer is formed by molding and curing a polymerizable organic group-having fluid composition. The curing may be effected through photopolymerization or thermal polymerization of the polymerizable organic group in the composition, and a predetermined surface profile is transferred onto the composition layer from the mold used. The cured composition is released from the mold, and this is coated with a multi-layered dielectric film.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: February 28, 2006
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Masahiro Hori, Teruyuki Sasaki, Hiroaki Yamamoto, Kentaro Fukuda, Kenichi Yamada, Toshiaki Anzaki, Kenjiro Hamanaka, Koichiro Nakamura, Masaatsu Kido
  • Publication number: 20050214841
    Abstract: A substrate having a plurality of recesses, wherein each of the plurality of recesses has a surface, wherein at least part of the surface is coated with a metal film comprising at least one element selected from Au, Ag, Cu and Pd. A biochip substrate comprising: a substrate having at least one recess; and a metal film formed on the at least one recess, wherein the metal film comprises at least one element selected from Au, Ag, Cu and Pd.
    Type: Application
    Filed: March 24, 2005
    Publication date: September 29, 2005
    Inventor: Koichiro Nakamura
  • Publication number: 20050121782
    Abstract: Concave parts arranged with a predetermined pattern on the surface of a plate substrate is formed. Wettability of the concave part surface is made to differ from that of the surface of a flat part between the concave parts. Particularly, in the case of an aqueous liquid, by forming water repellency film on the flat part, liquid can be stably retained on the concave part and prevented from spilling over to the adjacent concave part.
    Type: Application
    Filed: December 3, 2004
    Publication date: June 9, 2005
    Inventors: Koichiro Nakamura, Kazutomo Ikeuti, Noriyuki Kawata, Yasunori Arima, Kenichi Nakama
  • Publication number: 20050069676
    Abstract: A mold structure according to the invention is formed by: injecting a fluid substance in a forming mold having a concave portion having a predetermined sectional shape; hardening the fluid substance; and releasing the fluid substance from the forming mold. The center-line average roughness Ra of the surface of the mold structure is selected to be not larger than 20 nm, preferably not larger than 8 nm. The center-line average roughness Ra of a portion of the forming mold having come into contact with the fluid substance is also selected to be not larger than 20 nm, preferably not larger than 8 nm. To produce such a forming mold, the specific resistance of water used for adjusting an aqueous solution at the time of formation of the concave portion in the glass surface by a chemical etching method is selected to be not lower than 13 M ?·cm.
    Type: Application
    Filed: September 24, 2004
    Publication date: March 31, 2005
    Inventors: Koichiro Nakamura, Kenichi Yamada, Hiroyuki Nemoto
  • Patent number: 6856723
    Abstract: A group velocity dispersion measuring device capable of measuring group velocity dispersion (GVD) with a simple configuration and in a short time, comprising an FSF laser (FSFL) (2) for generating frequency chirp light, an optical amplifier (AMP) (3) for amplifying the frequency chirp light, an optical coupler (4), a circulator (5) for branch-controlling optical signals, a photodetector (6) for receiving a ray of light before and after its propagation through an optical fiber (1) to be measured, and an RF spectrum analyzer (RFSA) (7) for observing an optical spectrum waveform. Beat signals generated between chirp lights before and after the propagation, through the optical fiber (1) to be measured, of frequency chirp light emitted from the FSF laser (2) are alternately observed to calculate a GVD value from frequency differences between these beat signals.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: February 15, 2005
    Assignee: Japan Science and Technology Agency
    Inventors: Hiromasa Ito, Masato Yoshida, Koichiro Nakamura
  • Patent number: 6852420
    Abstract: According to the present invention, there is provided a mold constituted by an electrically conductive thin plate having a predetermined surface shape, and an electrically insulating reinforcement material, wherein the electrically conductive thin plate and the electrically insulating reinforcement material are bonded to each other by an anodic bonding method. Particularly, the electrically conductive thin plate is preferably formed out of silicon single crystalline and the electrically insulating reinforcement material is preferably oxide glass.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: February 8, 2005
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Hiroaki Yamamoto, Masahiro Hori, Koichiro Nakamura, Kenichi Nakama, Katsuhide Shimmo
  • Patent number: 6849209
    Abstract: An article with a predetermined surface pattern that is coated with a film which makes possible the complete transfer of the pattern of a patterning die and thick-film patterning having a depth to the order of several tens of micrometers, prevents the occurrence of cracks, has high film hardness, and has a surface pattern which is the inverse of the surface pattern of the patterning die. This article is produced by joining a patterning die closely to a substrate with a sol-gel material containing the silane compound represented by the formula: R1SiX3 (wherein R1 is an alkyl group or hydrogen and X is an alkoxyl group or a halogen atom) and the silane compound represented by the formula: R2SiY3 (wherein R2 is an aryl group or a substituted aryl group and Y is an alkoxyl group or a halogen atom) disposed therebetween in the form of a film and heating them to coat the surface of the substrate with a gel film having a surface pattern which is the inverse of the surface pattern of the patterning die.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: February 1, 2005
    Assignees: Nippon Sheet Glass Co., Ltd.
    Inventors: Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda, Masahiro Hori, Koichiro Nakamura, Hiroaki Yamamoto
  • Patent number: 6849350
    Abstract: An article having a predetermined surface configuration comprising a substrate and a gelled film having a high refractive index, excellent heat resistance, high film hardness and excellent transferability formed on the surface of the substrate. A process for producing an article having a gelled film with a transferred surface on the surface of a substrate by arranging a sol-gel material with close contact between the substrate and a mold in the form of a film and heating it. The sol-gel material contains a metal compound represented by M1Xm, a hydrolyzate thereof or a hydrolysis/polycondensation product thereof, and a metal compound represented by R1M2Yn, a hydrolyzate thereof or a hydrolysis/polycondensation product thereof, wherein at least one of M1 and M2 is a metal atom selected from Ti, Zr, Al, Ge, Sn or Sb and the metal atom accounts for at least 10 atom % of the total of M1 and M2.
    Type: Grant
    Filed: February 22, 2002
    Date of Patent: February 1, 2005
    Assignees: Nippon Sheet Glass Co., Ltd.
    Inventors: Tsutomu Minami, Masahiro Tatsumisago, Kiyoharu Tadanaga, Atsunori Matsuda, Masahiro Hori, Hiroaki Yamamoto, Koichiro Nakamura
  • Patent number: 6850318
    Abstract: An apparatus and method for measuring polarization mode dispersion (PMD) using a polarization mode dispersion measuring device, comprising an FSF laser generating frequency chirped light, an optical amplifier amplifying the frequency chirped light, an offset circuit, a ?/2 plate, a beam splitter, an analyzer retrieving polarization components measured from each light wave after propagating through the fast axis and the delay axis of the optical fiber under test, a lens, a photodetector detecting a light wave passed through the lens, and an RF spectrum analyzer observing a spectrum waveform of the light wave. The frequency chirped light, after propagating through the optical fiber under test and passing through the analyzer, is detected and the variation in beat frequency is measured to determine a PMD value.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: February 1, 2005
    Assignee: Japan Science and Technology Agency
    Inventors: Hiromasa Ito, Masato Yoshida, Toshiyuki Miyamoto, Koichiro Nakamura
  • Patent number: 6845186
    Abstract: An optical circuit is designed with demultiplexing and optical detection functionality with minimal crosstalk. An Nth order harmonic generation device is positioned before the demultiplexer to either convert the frequency or down convert the wavelength of the demultiplexed light wave by N-times. Upconverting the multiplexed signal at the receiver station is performed by either simultaneously upconverting N-times to create N times the original spacing between each optical channel or by upconverting the frequency of one optical channel at a time.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: January 18, 2005
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Masahiro Oikawa, Ken Yamashita, Koichiro Nakamura, Chandrasekhar Roychoudhuri, Vladimir V. Serikov
  • Patent number: 6760533
    Abstract: An adhesive composition for bonding optical parts comprising (A) 3 to 60 wt % of an epoxysilane or a hydrolysis/polycondensation product thereof, (B) 5 to 90 wt % of a bisphenol type epoxy resin having a viscosity of 2,000 to 5,000 mPa·s, (C) 5 to 35 wt % of a novolak type epoxy resin, 3 to 30 wt % of a curing agent which is an amine, and water and an alcohol in an amount of 0 to 0.75 time the total number of mols of the hydrolyzable groups or atoms of the epoxysilane. This composition has excellent moisture resistance and heat resistance, suppresses the formation of bubbles during curing, is free from such a defect as opaqueness caused by bubbles and can be used for the assembly and bonding of optical parts.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: July 6, 2004
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Koichiro Nakamura, Takeshi Ishimaru
  • Publication number: 20040105155
    Abstract: The optical device having a predetermined surface profile of the invention is fabricated by forming a multi-layered dielectric film on the surface of a solid composition layer having a glass transition temperature of not lower than 100° C. The solid composition layer is formed by molding and curing a polymerizable organic group-having fluid composition. The curing may be effected through photopolymerization or thermal polymerization of the polymerizable organic group in the composition, and a predetermined surface profile is transferred onto the composition layer from the mold used. The cured composition is released from the mold, and this is coated with a multi-layered dielectric film.
    Type: Application
    Filed: July 31, 2003
    Publication date: June 3, 2004
    Inventors: Masahiro Hori, Teruyuki Sasaki, Hiroaki Yamamoto, Kentaro Fukuda, Kenichi Yamada, Toshiaki Anzaki, Kenjiro Hamanaka, Koichiro Nakamura, Masaatsu Kido