Patents by Inventor Ichiro Yamashita

Ichiro Yamashita 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: 7419849
    Abstract: The present invention provides a method for production of a single electron semiconductor element (SET) in which a quantum dot is selectively arranged in a nano gap between fine electrodes, whereby the product yield is significantly improved, leading to excellent practical applicability. The method for production of SET of the present invention is characterized in that a solution containing ferritin including a metal or semiconductor particle therein, and a nonionic surfactant is dropped on a substrate having a source electrode and a drain electrode formed by laminating a titanium film and a film of a metal other than titanium, whereby the ferritin is selectively arranged in a nano gap between the source electrode/drain electrode.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: September 2, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shinya Kumagai, Shigeo Yoshii, Nozomu Matsukawa, Ichiro Yamashita
  • Publication number: 20080191645
    Abstract: In an acceleration tube conditioning apparatus for performing a conditioning process on an acceleration tube when a high frequency power signal to be supplied to an acceleration tube is generated by a high frequency power supply, a power value collecting section collects a traveling wave power value and a reflection wave power value from a sensor which monitors the traveling wave power signal and the reflection wave power signal. A high frequency calculating section calculates a resonance frequency of the acceleration tube based on the traveling wave power value and the reflection wave power value. A high frequency adjusting section determines a high frequency value based on one of the traveling wave power value and the reflection wave power value as a selection power value, and a high frequency power supply control unit controls the high frequency power supply based on the high frequency value.
    Type: Application
    Filed: September 28, 2007
    Publication date: August 14, 2008
    Applicant: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tatsufumi Aoi, Kuniyuki Kajinishi, Ichiro Yamashita, Susumu Urano, Shinji Nomura
  • Patent number: 7399642
    Abstract: To provide fine particle films including fine particles which are arranged at a high density in a highly accurate and regular manner is enabled. The fine particle film is a fine particle film including a substrate and plural number of protein fine particles which are arranged on the surface of the substrate in a plane direction parallel to the surface of the substrate, wherein each of the protein fine particles has plural number of first binding sites and one or more second binding sites respectively including a condensed amino acid, and each of the first binding sites binds to other first binding site carried by an adjacent fine particle while the second binding site binds to the substrate, wherein at least a part of the condensed amino acids constituting the second binding site are substituted.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: July 15, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Ichiro Yamashita
  • Patent number: 7393935
    Abstract: A method for selectively arranging ferritin in a specified inorganic material part formed on a substrate is provided. The method for arranging ferritin of the present invention is characterized in that ferritin is selectively arranged on a part including titanium or silicon nitride (SiN) in an efficient manner by adding a nonionic surface active agent. Also, selective arrangement capability of ferritin can be markedly improved by modifying the N-terminus of ferritin with a certain peptide.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: July 1, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroya Kirimura, Ichiro Yamashita
  • Publication number: 20080154024
    Abstract: A method for selectively arranging ferritin in a specified inorganic material part formed on a substrate is provided. The method for arranging ferritin of the present invention is characterized in that ferritin is selectively arranged on a part including titanium or silicon nitride (SiN) in an efficient manner by adding a nonionic surface active agent. Also, selective arrangement capability of ferritin can be markedly improved by modifying the N-terminus of ferritin with a certain peptide.
    Type: Application
    Filed: March 21, 2006
    Publication date: June 26, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Hiroya Kirimura, Ichiro Yamashita
  • Publication number: 20080108227
    Abstract: The present invention provides a method for production of a single electron semiconductor element (SET) in which a quantum dot is selectively arranged in a nano gap between fine electrodes, whereby the product yield is significantly improved, leading to excellent practical applicability. The method for production of SET of the present invention is characterized in that a solution containing ferritin including a metal or semiconductor particle therein, and a nonionic surfactant is dropped on a substrate having a source electrode and a drain electrode formed by laminating a titanium film and a film of a metal other than titanium, whereby the ferritin is selectively arranged in a nano gap between the source electrode/drain electrode.
    Type: Application
    Filed: July 26, 2007
    Publication date: May 8, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Shinya Kumagai, Shigeo Yoshii, Nozomu Matsukawa, Ichiro Yamashita
  • Publication number: 20080064871
    Abstract: [Problems] The present invention provides a superior production method and a superior purification method of compounds effective for the treatment or prophylaxis of pathology showing involvement of uric acid, such as hyperuricemia, gouty tophus, acute gouty arthritis, chronic gouty arthritis, gouty kidney, urolithiasis, renal function disorder, coronary artery disease, ischemic heart disease and the like. [Means] A compound represented by the following formula [2] or a pharmaceutically acceptable salt thereof can be produced by reacting a compound represented by the following formula [3] or a salt thereof with a compound represented by the following formula [4], a salt thereof or a reactive derivative thereof. Moreover, crystallization of a compound represented by the formula [2] can be performed with industrially superior workability, and high quality crystals of a compound represented by the formula [2] can be obtained. wherein each symbol is as defined in the description.
    Type: Application
    Filed: May 24, 2007
    Publication date: March 13, 2008
    Applicant: Japan Tobacco Inc.
    Inventors: Kazuyuki Hirata, Naoki Ogawa, Yuko Shinagawa, Toshihiro Kiguchi, Teruhiko Inoue, Yasuki Komeda, Ichiro Yamashita, Yukihiro Kamiya
  • Patent number: 7223847
    Abstract: A method for obtaining a cobalt-apoferritin complex according to the present invention includes: the step a) of preparing a solution including a Co2+ ion, a protein, a pH buffer agent and a Co2+ associating agent; and the step b) of adding an oxidizing agent to the solution and thereby making the protein contain a fine particle including cobalt.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: May 29, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Ichiro Yamashita
  • Patent number: 7204999
    Abstract: The method of the production of a nanoparticle of the present invention includes a step of forming a nanoparticle including a compound of ametal ion in a cavity part of aprotein, in a solution containing the protein having the cavity part therein, the metal ion, and a carbonate ion and/or a hydrogen carbonate ion. Examples of the aforementioned compound include e.g., a hydroxide. The aforementioned metal ion is preferably any one of a nickel ion (Ni2+), a chromium ion (Cr2+) or a copper ion (Cu2+). According to the aforementioned method, nanoparticles having a uniform particle diameter can be produced.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: April 17, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Mitsuhiro Okuda, Hideyuki Yoshimura, Ichiro Yamashita
  • Patent number: 7188999
    Abstract: A radiation treatment apparatus includes a guide and a support member. The guide moves a radiation generating unit along an orbit with a predetermined radius such that an X-ray emitted from the radiation generating unit may cross an isocenter. The support member rotates the guide about a turning axis passing through the isocenter. The radiation generating unit is moved along a spherical plane by the guide and the support member and applies the X-ray toward the isocenter in multiple directions.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: March 13, 2007
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Kazumasa Mihara, Kenji Hara, Ichiro Yamashita, Ikuo Wakamoto, Yuichiro Kamino
  • Publication number: 20060290975
    Abstract: An image output system includes input section for inputting an image or data, instruction acceptance section for accepting an instruction of outputting the input image or an image generated from the input data, image output section for outputting the instructed image, and log-recording section for recording an image log, including at least the image to be output and the result information of an output process for the image to be output, irrespective of whether or not the output of the instructed image has been completed successfully.
    Type: Application
    Filed: November 9, 2005
    Publication date: December 28, 2006
    Inventors: Tetsunori Murakami, Yoshihide Kohtani, Ichiro Yamashita
  • Publication number: 20060287511
    Abstract: An object of the present invention is to obtain a zinc oxide-protein complex which can be a source of nanoparticles of zinc oxide utilizing a protein having a cavity inside thereof The process for producing a zinc oxide-protein complex according to the present invention includes a hydrogen peroxide addition step for adding hydrogen peroxide so that the concentration would be 60 mM or greater and 150 mM or less to a buffer containing a protein having a cavity inside thereof such as ferritin, zinc ion, and ammonia.
    Type: Application
    Filed: August 23, 2006
    Publication date: December 21, 2006
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Mitsuhiro Okuda, Kazuaki Nishio, Ichiro Yamashita
  • Publication number: 20060257931
    Abstract: A method for selectively arranging ferritin modified with a peptide, which specifically binds to titanium, to titanium formed on a substrate surface is provided. The method for arranging ferritin of the present invention is characterized in that ferritin is selectively bound on titanium on a substrate by modifying the N-terminal part of ferritin with a peptide which specifically binds to titanium. Also, the method for arranging ferritin of the present invention is characterized in that selectivity for titanium can be markedly improved by adding a nonionic surface activating agent.
    Type: Application
    Filed: February 16, 2006
    Publication date: November 16, 2006
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Ichiro Yamashita, Kiyotaka Shiba
  • Patent number: 7129047
    Abstract: A nucleotide detector 10 includes: metal particles 12 having a size of the order of nanometers (diameter: about 6 nm) placed on a surface of a substrate 11 at high density with high precision (with spaces of about 12 nm between adjacent particles); and single-stranded DNAs (thiol DNAs) 13 having sulfur atoms at ends bonded to the gold particles 12. The thiol DNAs 13 are placed uniformly over the entire substrate 11 at high density with high precision. Therefore, once a fluorescence-labeled single-stranded DNA is hybridized with any of the thiol DNAs 13, high fluorescence intensity is stably obtained. This detector is therefore usable as a high-performance DNA sensor with a high SN ratio.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: October 31, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Ichiro Yamashita
  • Patent number: 7129058
    Abstract: The method of the production of a nanoparticle of the present invention includes a step of forming a nanoparticle of a group IIā€“group VI compound semiconductor in the cavity part of a protein, in a solution containing the protein having a cavity part therein represented by apoferritin, the group II element ion represented by Cd and Zn, and the group VI element ion represented by S and Se. Preferably, the solution further includes an ammonium ion, and the supply of the group VI element ion (X2?) into the solution is conducted by adding H2NCXNH2 to the solution. According to the aforementioned method, semiconductor nanoparticles having a uniform particle size can be produced.
    Type: Grant
    Filed: December 5, 2003
    Date of Patent: October 31, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Ichiro Yamashita
  • Patent number: 7105323
    Abstract: The present invention relates to a precious metal-recombinant apoferritin complex produced by recombination technique, wherein the precious metal is gold (Au) or platinum (Pt), and wherein the residues of glutamic acid and aspartic acid in a channel of apoferritin complex are substituted with small polar amino acid residues or/and noncharged amino acid residues, e.g., serine, or/and with basic amino acid residues, e.g., lysine. The substitution prevents a repulsive force due to electrostatic interaction between a metal ion, e.g., (AuCl4)? that has a negative charge and a negative amino acid residue of the apoferritin, and facilitates the capture of (AuCl4)? into holding portion in the channel of said metal-recombinant apoferritin complex. The captured (AuCl4)? is subsequently reduced to Au, and thus the gold-recombinant apoferritin complex is produced.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: September 12, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Ichiro Yamashita
  • Patent number: 7085347
    Abstract: The radiotherapy apparatus in the present invention includes a bed, a radiation irradiating head, head swing mechanisms, a precise inspection unit and a control unit. The bed carries a subject. The radiation irradiating head irradiates a treatment radiation to a treatment field of the subject. The head swing mechanisms, which are coupled to the radiation irradiating head, swings the head of the radiation irradiating head so that the treatment radiation emitted from the radiation irradiating head pursues the motion of the treatment field. The precise inspection unit obtains a diagnosis image containing the treatment field. The control unit controls the positions of the head swing mechanisms so that an irradiation field of the radiation irradiating head pursues the treatment field, based on the diagnosis image, the position of the radiation irradiating head and the state of the swung head.
    Type: Grant
    Filed: August 23, 2002
    Date of Patent: August 1, 2006
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Kazumasa Mihara, Kenji Hara, Ichiro Yamashita, Ikuo Wakamoto, Yuichiro Kamino
  • Patent number: 7069501
    Abstract: Without using a script that describes a procedure, document parts are extracted from structured documents and inserted or substituted in a template to synthesize a document. An extraction instruction to retrieve document parts, and repetitive duplication and insertion/substitution instructions are provided to the structured documents. Therefore, document part retrieval, repetitive duplication, and a document part (location) in which a document part is to be inserted or substituted are specified, and instructions retrieved from plural inputted structured documents are dynamically synthesized to create a document processing description, so that a document processing description script becomes unnecessary. Consequently, the inconvenience of managing scripts in addition to original documents is eliminated.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: June 27, 2006
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Setsu Kunitake, Ichiro Yamashita, Shigehisa Kawabe
  • Publication number: 20060121628
    Abstract: To provide fine particle films including fine particles which are arranged at a high density in a highly accurate and regular manner is enabled. The fine particle film is a fine particle film including a substrate and plural number of protein fine particles which are arranged on the surface of the substrate in a plane direction parallel to the surface of the substrate, wherein each of the protein fine particles has plural number of first binding sites and one or more second binding sites respectively including a condensed amino acid, and each of the first binding sites binds to other first binding site carried by an adjacent fine particle while the second binding site binds to the substrate, wherein at least a part of the condensed amino acids constituting the second binding site are substituted.
    Type: Application
    Filed: December 9, 2005
    Publication date: June 8, 2006
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventor: Ichiro Yamashita
  • Patent number: 7041530
    Abstract: A method of the production of a nanoparticle dispersed composite material capable of controlling a particle size and a three dimensional arrangement of the nanoparticles is provided. The method of the production of a nanoparticle dispersed composite material of the present invention includes a step (a) of arranging a plurality of core fine particle-protein complexes having a core fine particle, which comprises an inorganic material, internally included within a protein on the top surface of a substrate, a step (b) of removing the protein, a step (c) of conducting ion implantation from the top surface of the substrate, and a step (d) of forming nanoparticles including the ion implanted by the ion implantation as a raw material, inside of the substrate.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: May 9, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masahiro Nunoshita, Ichiro Yamashita, Shigeo Yoshii