Patents by Inventor Shinya Sasaki

Shinya Sasaki 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: 20130234078
    Abstract: The method for manufacturing a silver particle-containing composition according to the invention is directed to a method for manufacturing a silver particle-containing composition coated with a fatty acid and includes a step (A) of preparing silver particles coated with a first fatty acid (a) with 3 to 7 carbon atoms, a second fatty acid (b) with 2 to 20 carbon atoms, and a solvent in which the first and second fatty acids can disperse, respectively, a step (B) of adding the silver particles coated with the first fatty acid (a) and the second fatty acid (b) into the solvent, and a step (C) of substituting the second fatty acid (b) for the first fatty acid (a) coating the silver particles after the addition step.
    Type: Application
    Filed: October 28, 2011
    Publication date: September 12, 2013
    Applicant: DOWA ELECTRONICS MATERIALS CO., LTD
    Inventors: Yu Saito, Shinya Sasaki
  • Patent number: 8520196
    Abstract: Bending of an optical fiber where a heat may be generated by a high output power can be detected without using a dedicated light source. An optical communication module that outputs a continuous wave light generated by at least one light source to an optical fiber transmission line, includes: (1) a loss measurement unit that measures a loss of an amplified spontaneous emission generated by allowing the continuous wave light output from the light source to create stimulated Raman scattering in the optical fiber transmission line; (2) a fiber abnormality analyzer that detects the abnormal state of the optical fiber transmission line on the basis of loss information on the ASE measured by the loss measurement unit; and (3) a light source controller that controls a supply state of the continuous wave light from the light source on the basis of the detection of the fiber abnormality analyzer.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: August 27, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Riu Hirai, Nobuhiko Kikuchi, Tetsuya Uda, Shinya Sasaki
  • Patent number: 8486307
    Abstract: Provided are silver nanoparticles having a good affinity (that is, dispersibility) for y-butyrolactone (C4H6O2), an organic solvent which has a relatively high boiling point though having a relatively small molecular weight, and has a low viscosity and a low surface tension and which has little irritating odor. The above problems are solved by providing a silver micropowder excellent in affinity for at least y-butyrolactone, which comprises silver particles processed to adsorb at least one of 1,4-dihydroxy-2-naphthoic acid (C11H8O4) and gallic acid (C7H6O5) on the surfaces thereof and having an X-ray crystal particle diameter DX of from 1 to 40 nm, preferably from 1 to 15 nm.
    Type: Grant
    Filed: December 25, 2008
    Date of Patent: July 16, 2013
    Assignee: Dowa Electroncis Materials Co., Ltd.
    Inventors: Kimitaka Sato, Shinya Sasaki, Taro Nakanoya
  • Patent number: 8467687
    Abstract: Distortion of a reception signal which is attributable to interference between subcarriers during photoelectric conversion is reduced in an optical OFDM communication system without broadening the signal band. A transmission signal processing unit (100) in a transmitter is provided with a distortion generating circuit (distortion generating unit) (170). A subcarrier signal is utilized as an input signal for the circuit. The distortion generating circuit (170) generates a baseband OFDM signal by means of inverse FFT calculation using the input signal, computes the square of the absolute value of the signal, and restores the subcarrier signal by mean of FFT calculation. Because interference between subcarriers is also included in the signal, the distortion element generated by the interference between the subcarriers can be extracted when the difference from the input signal is found.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: June 18, 2013
    Assignee: Hitachi, Ltd.
    Inventor: Shinya Sasaki
  • Patent number: 8461062
    Abstract: The substrate processing apparatus includes: a processing chamber for storing and processing substrates stacked in multiple stages in horizontal posture; at least one processing gas supply nozzle which extends running along an inner wall of the processing chamber in the stacking direction of the substrates and supplies a processing gas to the inside of the processing chamber; a pair of inactive gas supply nozzles which are provided so as to extend running along the inner wall of the processing chamber in the stacking direction of the substrates and so as to sandwich the processing gas supply nozzle from both sides thereof along the circumferential direction of the substrates and which supply the inactive gas to the inside of the processing chamber; and an exhaust line for exhausting the inside of the processing chamber.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: June 11, 2013
    Assignee: Hitachi Kokusai Electric Inc.
    Inventors: Masanori Sakai, Yuji Takebayashi, Tsutomu Kato, Shinya Sasaki, Hirohisa Yamazaki
  • Patent number: 8444872
    Abstract: Disclosed is a magnetic material having high Hc and High Curie point, which is capable of controlling such magnetic characteristics without requiring rare or expensive raw materials. Specifically disclosed is a magnetic material composed of particles of a magnetic iron oxide which is represented by the following general formula: ?-AxByFe2?x?yO3 or ?-AxByCzFe2?x?y?zO3 (wherein A, B and C each represents a metal excluding Fe and different from each other, satisfying 0<x, y, z<1), with ?-Fe2O3 as a main phase.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: May 21, 2013
    Assignees: The University of Tokyo, Dowa Electronics Materials Co., Ltd.
    Inventors: Shin-ichi Ohkoshi, Shunsuke Sakurai, Takenori Yorinaga, Kazuyuki Matsumoto, Shinya Sasaki
  • Patent number: 8447311
    Abstract: A radio communications system includes at least one terminal communication unit having one antenna that conducts a radio communication with a plurality of terminals; and at least one baseband modem that generates and decrypts a data signal, a cell being configured by at least one of the antenna, wherein the baseband modem divides a radio frequency band used for the radio communication into two or more subbands, generates and decrypts the data signal specific to each of the divided subbands, and allocates the data signal specific to the subband to the terminal communication unit, and wherein the terminal communication unit receives the data signal specific to the subband generated by the baseband modem, and forms the cell of each the subband by the data signal specific to the received subband.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: May 21, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Kenzaburo Fujishima, May Takada, Katsuhiko Tsunehara, Satoshi Tamaki, Shinya Sasaki, Go Ono, Koki Uwano
  • Patent number: 8417126
    Abstract: A polarization multiplexing transmitter which generates polarization-multiplexed signals which are arbitrarily polarization-scrambled at high speed, without adding a polarization modulator and a polarization scrambler. In the transmitter, an orthogonally polarized signal generator includes two optical modulators which modulate the electric fields of optical signals and generate two optical signals with mutually orthogonal polarized waves. The transmitter includes electric field mappers which convert two data strings into electric field signals, polarization mappers which give different polarized waves to the two signals, polarization rotators which rotate the polarized waves of the signals uniformly, a polarization multiplexer which multiplexes the two polarization-rotated signals, a polarization demultiplexer which demultiplexes the multiplexed signal into polarized wave components of optical signals generated by the orthogonally polarized signal generator, and a driver.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: April 9, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Kohei Mandai, Nobuhiko Kikuchi, Shinya Sasaki
  • Publication number: 20130071122
    Abstract: To reduce PAPR in an optical OFDM communication system, light is phase-modulated by a base-band OFDM signal which is the output of a transmission signal processing unit 100 provided in an inner section of an optical receiver. When optical communication is implemented with the light as signal light, PAPR of low level of almost 0 dB can be achieved at places in an inner section of an optical fiber wherein the optical power is large. The signal light is propagated along an optical fiber which is a transmission path, the light is passed through a delay interferometer, and converted to electrical signals by two optical receivers. Each of the two electrical signals is converted to a subcarrier by FFT signal processing and an AD converter disposed in an inner section of the optical receivers, then, subcarriers having the same frequency are subtracted and decoded, and data is regenerated.
    Type: Application
    Filed: June 3, 2010
    Publication date: March 21, 2013
    Inventor: Shinya Sasaki
  • Patent number: 8374504
    Abstract: A transmitting apparatus includes a plurality of code spreaders different in spreading code, a reception processing unit that selectively distributes transmission data to the plurality of code spreaders, a plurality of optical transmitters each of which that transmit a code-spread signal to an optical fiber as a CDMA optical signal of a carrier wavelength different from that of the other optical transmitters, and a signal multiplexing unit that selectively supplies outputs of the plurality of code spreaders to the plurality of optical transmitters. A receiving apparatus includes an optical receiver that receives a wavelength-division-multiplexed CDMA optical signal from the optical fiber, and a plurality of despreaders connected to the optical receiver and different in spreading code, wherein each of the despreaders reproduces a CDMA signal corresponding to its spreading code from an output signal of the optical receiver.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: February 12, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Masahiko Mizutani, Yoshihiro Ashi, Shinya Sasaki, Tohru Kazawa
  • Publication number: 20120294616
    Abstract: A sinusoidal wave output from an RF oscillator provided in a transmitter is phase-modulated using a baseband OFDM signal output from a transmitter-signal processing unit 100, and this phase-modulated sinusoidal wave is used to modulate an optical wave. Using this light as signal light to achieve optical communication enables a low PAPR value such as 6 dB or less to be achieved where the photoelectric power is high in an optical fiber, thus enabling the above described problems to be solved. This signal light travels through an optical fiber serving as the transmission line and is converted by a receiver into an electric signal. The electric signal is synchronously detected using a sinusoidal wave output from an RF oscillator oscillating at the same frequency as the above RF oscillator provided in the transmitter. Ordinary OFDM signal processing for reception is performed.
    Type: Application
    Filed: January 18, 2010
    Publication date: November 22, 2012
    Inventor: Shinya Sasaki
  • Publication number: 20120273964
    Abstract: A manufacturing method of a semiconductor device includes: forming an insulating layer above a substrate; forming a recessed section in the insulating layer; forming, on the insulating layer, a mask pattern having a first opening which exposes the recessed section, and a second opening which is arranged outside the first opening and does not expose the recessed section; forming a first conductive member and a second conductive member by respectively depositing a conductive material in the first opening and the second opening; and polishing and removing the first conductive member and the second conductive member on the upper side of the insulating layer so as to leave the first conductive member in the recessed section.
    Type: Application
    Filed: March 22, 2012
    Publication date: November 1, 2012
    Applicant: Fujitsu Limited
    Inventors: Tsuyoshi KANKI, Shoichi Suda, Shinya Sasaki
  • Publication number: 20120224168
    Abstract: Bending of an optical fiber where a heat may be generated by a high output power can be detected without using a dedicated light source. An optical communication module that outputs a continuous wave light generated by at least one light source to an optical fiber transmission line, includes: (1) a loss measurement unit that measures a loss of an amplified spontaneous emission generated by allowing the continuous wave light output from the light source to create stimulated Raman scattering in the optical fiber transmission line; (2) a fiber abnormality analyzer that detects the abnormal state of the optical fiber transmission line on the basis of loss information on the ASE measured by the loss measurement unit; and (3) a light source controller that controls a supply state of the continuous wave light from the light source on the basis of the detection of the fiber abnormality analyzer.
    Type: Application
    Filed: February 1, 2012
    Publication date: September 6, 2012
    Applicant: HITACHI, LTD.
    Inventors: Riu HIRAI, Nobuhiko KIKUCHI, Tetsuya UDA, Shinya SASAKI
  • Publication number: 20120156692
    Abstract: The present invention provides a method for selecting a marker for diagnosis of the nutritional status capable of reflecting the status of a particular nutrient in a plant without being influenced by various stresses in environmental factors, etc., and a method for diagnosing the status of a particular nutrient in a plant using a marker for diagnosis of the nutritional status selected by the method. A metabolite quantitatively changed depending on only the amount of a particular nutrient in a plant is selected as a marker for diagnosis of the nutritional status reflecting the status of the nutrient in the plant.
    Type: Application
    Filed: May 26, 2010
    Publication date: June 21, 2012
    Applicant: OJI PAPER CO., LTD.
    Inventors: Shinya Sasaki, Shigeru Sato
  • Publication number: 20120122318
    Abstract: The substrate processing apparatus includes: a processing chamber for storing and processing substrates stacked in multiple stages in horizontal posture; at least one processing gas supply nozzle which extends running along an inner wall of the processing chamber in the stacking direction of the substrates and supplies a processing gas to the inside of the processing chamber; a pair of inactive gas supply nozzles which are provided so as to extend running along the inner wall of the processing chamber in the stacking direction of the substrates and so as to sandwich the processing gas supply nozzle from both sides thereof along the circumferential direction of the substrates and which supply the inactive gas to the inside of the processing chamber; and an exhaust line for exhausting the inside of the processing chamber.
    Type: Application
    Filed: December 20, 2011
    Publication date: May 17, 2012
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Masanori SAKAI, Yuji TAKEBAYASHI, Tsutomu KATO, Shinya SASAKI, Hirohisa YAMAZAKI
  • Publication number: 20120119337
    Abstract: Provided is a substrate processing apparatus capable of suppressing accumulation of reaction products or decomposed matters on an inner wall of a nozzle and suppressing scattering of foreign substances in a process chamber. The substrate processing apparatus includes a process chamber, a heating unit, a source gas supply unit, a source gas nozzle, an exhaust unit, and a control unit configured to control at least the heating unit, the source gas supply unit and the exhaust unit. The source gas nozzle is disposed at a region in the process chamber, in which a first process gas is not decomposed even under a temperature in the process chamber higher than a pyrolysis temperature of the first process gas, and the control unit supplies the first process gas into the process chamber two or more times at different flow velocities to prevent the first process gas from being mixed.
    Type: Application
    Filed: November 4, 2011
    Publication date: May 17, 2012
    Applicant: HITACHI KOKUSAI ELECTRIC INC.
    Inventors: Shinya Sasaki, Yuji Takebayashi, Shintaro Kogura
  • Publication number: 20120101316
    Abstract: A method for the preparation of a fuel composition for use in gasoline engines and a blending component is provided, in which the fractions from cracking apparatus is used. In the method, light cycle oil obtained from fluid catalytic apparatus is subjected to fractionation and used as a blending component. The blending component obtained by fractionation has a distillation characteristic of from 160 to 230° C., a content of aromatic hydrocarbons with 9 or more carbon atoms of amount not less than 80% by volume and an indane content of amount not less than 20% by volume.
    Type: Application
    Filed: December 11, 2009
    Publication date: April 26, 2012
    Inventors: Hideto Fukya, Nobuhiro Okabe, Shinya Sasaki
  • Publication number: 20120085730
    Abstract: A method for manufacturing a wiring board, includes: forming an insulating resin layer on a conductive layer; forming a metal chloride or a metal sulfate on the insulating resin layer; forming a protective layer on the metal chloride or the metal sulfate; forming an exposed portion in the insulating resin layer, the metal chloride or the metal sulfate, and the protective layer so as to at least partially expose the conductive layer; removing residues in the exposed portion; removing the protective layer; and forming a wiring on the insulating resin layer in which the protective layer has been removed.
    Type: Application
    Filed: December 15, 2011
    Publication date: April 12, 2012
    Applicant: FUJITSU LIMITED
    Inventors: Shinya SASAKI, Motoaki TANI
  • Publication number: 20120022304
    Abstract: A fuel composition for use in gasoline engines which has excellent acceleration characteristics at high speeds and excellent fuel consumption. The fuel composition of this invention for use in gasoline engines satisfies the conditions: (1) the research octane number is not less than 99; (2) the density is in the range of from 0.750 to 0.770 g/cm3; (3) the distillation temperature at 50 vol % distilled is in the range of from 95 to 102° C., the distillation temperature at 90 vol % distilled is in the range of from 160 to 180 ° C., and the distillation end point is in the range of from 180 to 220 ° C.; and (4) the content of aromatic hydrocarbons with 9 or more carbon atoms is in the range of from 15 to 25% by volume, and the indane content is in the range of from 0.5 to 3.0% by volume.
    Type: Application
    Filed: December 11, 2009
    Publication date: January 26, 2012
    Applicant: SHELL OIL COMPANY
    Inventors: Hideto Fukuya, Nobuhiro Okabe, Shinya Sasaki
  • Patent number: 8097180
    Abstract: Disclosed is a magnetic material comprising a crystal of ?-GaxFe2-xO3 (wherein 0<x<1) prepared by substituting a part of Ga3+ ion sites of an ?-Fe2O3 crystal with Fe3+ ions and having X-ray diffraction peaks corresponding to the crystal structure of ?-Fe2O3. The coercive force of the magnetic material lowers in accordance with the Ga content thereof, and the saturation magnetization thereof has a maximum value.
    Type: Grant
    Filed: March 28, 2007
    Date of Patent: January 17, 2012
    Assignees: The University of Tokyo, DOWA Electronics Materials Co., Ltd.
    Inventors: Shin-ichi Ohkoshi, Kazuhito Hashimoto, Shunsuke Sakurai, Shiro Kuroki, Kimitaka Sato, Shinya Sasaki