Patents by Inventor Kenji Kawasaki

Kenji Kawasaki 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: 20100202891
    Abstract: The object of the invention is to provide a low-pressure turbine rotor capable of maintaining mechanical strength characteristics, and without problems in terms of quality without increasing manufacturing costs and manufacturing days, even if high temperature steam is introduced into the low-pressure turbine. A low-pressure turbine rotor used in a steam turbine facility including a high-pressure turbine, an intermediate-pressure turbine, and a low-pressure turbine includes a member formed from 1CrMoV steel, 2.25CrMoV steel, or 10CrMoV steel arranged on a steam inlet side, and a member formed from 3.5Ni steel arranged on a steam outlet side, which are joined together by welding. Alternatively, the member arranged on the steam inlet side and the member arranged on the steam outlet side, both of which are formed from 3.5Ni steel, are joined together by welding, and the member arranged on the steam inlet side is made of low-impurity 3.5Ni steel containing, by weight %, Si: 0.1% or less, Mn: 0.
    Type: Application
    Filed: July 30, 2009
    Publication date: August 12, 2010
    Inventors: Shin Nishimoto, Yoshinori Tanaka, Ryuichi Yamamoto, Kenji Kawasaki, Takashi Shige
  • Publication number: 20100040713
    Abstract: The present invention relates to a fat absorption inhibitor containing a chestnut skin extract, and a food and drink containing that fat absorption inhibitor. The present invention can therefore provide a fat absorption inhibitor, and a food and drink using the same, that can be obtained from waste products following primary use, inhibit increases in lipids such as blood neutral fats by inhibiting absorption of dietary lipids, and in turn are effective in preventing accumulation of lipids, have superior suitability for continuous ingestion without having an impact on flavor, and do not require a complex production process.
    Type: Application
    Filed: August 10, 2007
    Publication date: February 18, 2010
    Applicant: KRACIE FOODS, LTD.
    Inventors: Hisashi Kataoka, Tomoko Shiromizu, Kenji Kawasaki
  • Publication number: 20100020391
    Abstract: The observation device includes a micro optical system and a macro optical system. The observation device is configured in such a way that the micro and macro optical systems share an image position and that the first pupil position of the micro optical system and the second pupil position of the macro optical system substantially coincide with one another.
    Type: Application
    Filed: July 21, 2009
    Publication date: January 28, 2010
    Applicant: OLYMPUS CORPORATION
    Inventor: Kenji Kawasaki
  • Patent number: 7649684
    Abstract: An optical apparatus minimizes autofluorescence and stray light as well as leakage of excitation light and efficiently utilizes illuminating light from a fluorescence illumination optical system to allow observation of a bright fluorescence image. An observation apparatus has an objective, an observation optical system unit including a variable magnification optical system, and an imaging optical system unit including an imaging lens and an eyepiece. A fluorescence illumination apparatus, which is provided separately, is removably attached to the observation apparatus. The fluorescence illumination apparatus has a light source, a collector lens unit, and a reflecting member placed between the objective and the observation optical system unit at a position displaced from the optical axis of the objective to make light from the light source incident on the objective. An excitation filter is provided between the light source and the reflecting member.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: January 19, 2010
    Assignee: Olympus Corporation
    Inventors: Kenji Kawasaki, Daisuke Nishiwaki, Keiji Shimizu
  • Publication number: 20090274360
    Abstract: An object of the present invention is to provide a predetermined site luminescence measuring method and a predetermined site luminescence measuring apparatus, which allow for determining whether, when the luminescence from the predetermined site in live samples is measured, a photoprotein is localized at the predetermined site in the same ones as the samples.
    Type: Application
    Filed: March 30, 2006
    Publication date: November 5, 2009
    Applicant: Olympus Corporation
    Inventors: Hirobumi Suzuki, Yoko Ohashi, Kenji Kawasaki, Kiyotsugu Kojima, Kenichi Koyama, Akihiko Yoshikawa
  • Patent number: 7602556
    Abstract: A microscope has an oil immersion system objective and an imaging lens to make observations by charging oil between a cover glass protecting a sample and the most sample-side lens surface. At least one of a plurality of lens units, placed on the image side of the most sample-side lens in the oil immersion system objective, is moved along the optical axis, and thereby a front focal distance and a front focal position can be adjusted so that a predetermined depth position of the sample is focused in a state where a working distance WD between the cover glass and the most sample-side lens surface in the oil immersion system objective is set to a condition, 0<WD?0.03 mm.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: October 13, 2009
    Assignee: Olympus Corporation
    Inventor: Kenji Kawasaki
  • Patent number: 7602555
    Abstract: An observation or measurement device has, at least, an infinity-corrected objective lens and an imaging lens, and satisfies a condition, 4.56?D·NA??30 (mm), where D is the parfocal distance of the objective lens and NA? is the numerical aperture of the imaging lens. It is desirable to make a distance from the mount position of the objective lens to the most object-side surface of the imaging lens variable and to satisfy a condition, 0.5 FL<W<1.2 FL (mm), where W is the variable amount of the distance from the mount position of the objective lens to the most object-side surface of the imaging lens, and FL is the focal length of the imaging lens. It is more desirable to satisfy conditions, 0.4<D/FL<5 and 1?D/?d<3, where ?d is the outside diameter of a connection at the mount of the objective lens.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: October 13, 2009
    Assignee: Olympus Corporation
    Inventors: Kenji Kawasaki, Atsushi Yonetani
  • Patent number: 7589891
    Abstract: A laser scan type fluorescence microscope includes a laser light source section, an objective optical system for condensing excitation light from the laser light source section on a sample, a scanning device to scan a surface of the sample with the excitation light from the laser light source section, a pupil projection lens arranged between the scanning device and the objective optical system, a detection optical system for detecting fluorescence that emanates from the sample and passes the objective optical system and the pupil projection lens. The objective optical system has an objective lens and an image forming lens for forming an intermediate image of the sample, and a back focal position of the objective lens is made conjugate with a position near the scanning device by the image forming lens and the pupil projection lens, wherein the following condition is satisfied: 0.15?D/L?0.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: September 15, 2009
    Assignee: Olympus Corporation
    Inventor: Kenji Kawasaki
  • Publication number: 20090224758
    Abstract: A probe for NMR comprises a coil for irradiating an RF magnetic field and a coil for receiving an NMR signal, wherein the coil for irradiating the RF magnetic field comprises one wire or one sheet of foil, and the coil for receiving the NMR signal is formed of part of the coil for irradiating the RF magnetic field. A lead wire pair is drawn out from a portion on the way of a winding of the coil that comprises one wire or one sheet of foil, and a coil portion between the lead wire pair is assumed to be a second coil. The lead wires are each provided with a selection circuit which is switchable between a cut-off circuit and a passing circuit, and the selection circuit is switched where necessary.
    Type: Application
    Filed: February 13, 2009
    Publication date: September 10, 2009
    Inventors: Hideki Tanaka, Kenji Kawasaki, Hiroyuki Yamamoto
  • Patent number: 7560932
    Abstract: There is provided a nuclear magnetic resonance probe in which the loss caused by a high frequency cable between a probe coil and a preamplifier is reduced and the sensitivity of an NMR signal is improved. A changeover switch for NMR probe is divided into a switch part including switch elements and a filter part for filtering a switch control signal and an RF transmission signal. The switch part is disposed in a probe body inserted in a magnet of the probe. The filter part is disposed near a measurement apparatus located outside the probe. As for the switch part, a section structure of thickness and width is reduced in conformity with a narrow and slender shape of the probe body. The length of a high frequency cable between the probe coil and the preamplifier is shortened remarkably, and consequently the loss can be reduced.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: July 14, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Yuzo Fukuda, Shuya Hagiwara, Kenji Kawasaki
  • Publication number: 20090167102
    Abstract: In a starter motor equipped with a shock absorbing device, a disk spring is placed between a bottom part of a cylindrical casing and one side of a disk stack structure composed of rotatable disks and fixed disks which are alternately stacked. Caulking parts formed at an opening end of the cylindrical casing are bent toward the inner diameter side of the cylindrical casing in order to push the disk spring toward the bottom part side of the cylindrical casing through the disk stack structure. The disk spring accumulates reaction force (or elastic force) by the caulking. The reaction force accumulated in the disk spring pushes the disk stack structure to the axial direction of the cylindrical casing. The structure of the shock absorbing device can supply a uniform load to the disk spring, and provides a stable shock absorbing capability.
    Type: Application
    Filed: December 4, 2008
    Publication date: July 2, 2009
    Applicant: DENSO CORPORATION
    Inventors: Kenji Kawasaki, Kazuhiro Andoh, Shinji Andoh
  • Publication number: 20090121718
    Abstract: A probe for nuclear magnetic resonance (NMR) measurement provided with a multiple resonant circuit for detecting signals of two or more nuclides with high detection efficiency for nuclide at low resonant frequency comprises a multiple resonance radio frequency (RF) coil circuit that, with multiple lead lines connected to the RF coil, causes a part of the RF coil, separated by the connection points of the lead lines, to function as the inductor of a trap circuit that cuts off a signal at the frequency F1 for a signal at the resonant frequency F1 of a first nuclide and, at the same time, to function as an RF coil that detects a signal at the frequency F2 for a signal at the resonant frequency F2 of a second nuclide, thus increasing the signal detection efficiency for the nuclide at the frequency F2.
    Type: Application
    Filed: November 14, 2008
    Publication date: May 14, 2009
    Inventors: Hiroyuki YAMAMOTO, Kazuo Saitoh, Kenji Kawasaki, Yuzo Fukuda, Michiya Okada
  • Publication number: 20080258730
    Abstract: There is provided a nuclear magnetic resonance probe in which the loss caused by a high frequency cable between a probe coil and a preamplifier is reduced and the sensitivity of an NMR signal is improved. A changeover switch for NMR probe is divided into a switch part including switch elements and a filter part for filtering a switch control signal and an RF transmission signal. The switch part is disposed in a probe body inserted in a magnet of the probe. The filter part is disposed near a measurement apparatus located outside the probe. As for the switch part, a section structure of thickness and width is reduced in conformity with a narrow and slender shape of the probe body. The length of a high frequency cable between the probe coil and the preamplifier is shortened remarkably, and consequently the loss can be reduced.
    Type: Application
    Filed: November 21, 2007
    Publication date: October 23, 2008
    Inventors: Yuzo Fukuda, Shuya Hagiwara, Kenji Kawasaki
  • Publication number: 20080061778
    Abstract: An antenna coil is formed by a wire rod obtained by combining and integrating two or more kinds of materials having different magnetisms. The wire rod has a circular or polygonal cross sectional shape. The two or more kinds of materials having different magnetisms are combined so that the magnetisms of the combined materials are set off. The wire rod is wound around a bobbin so as to have a solenoid shape. Desirably, the low-magnetic wire rod is placed in an atmosphere whose temperature has been reduced to 10° K or less or superconductive filaments are formed in the outermost layer. Preferably, a part of the superconductive filaments are exposed.
    Type: Application
    Filed: August 10, 2007
    Publication date: March 13, 2008
    Inventors: Masaya Takahashi, Kazuhide Tanaka, Kenji Kawasaki, Toshiyuki Shiino, Michiya Okada
  • Patent number: 7262600
    Abstract: The invention reduces a flow of a heat making an intrusion into an NMR probe, and uniformizes a spatial temperature generated in a sample pipe. A temperature modulated gas is supplied to a thermal anchor temperature modulated gas flow path constituted by a sample pipe insertion port around a sample pipe, and sample pipe insertion port structure bodies. A part of the temperature modulated gas is divided into a thermal anchor temperature modulated gas flow path by a temperature modulated gas division hole, and flows toward a thermal anchor. The thermal anchor is constituted by a porous member having a hole through which a gas can pass, and comes to the same temperature as the temperature modulated gas on the basis of a heat exchange with the temperature modulated gas.
    Type: Grant
    Filed: July 11, 2006
    Date of Patent: August 28, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Kawasaki, Minseok Park
  • Publication number: 20070161404
    Abstract: To reduce costs of developing mobile communication terminals such as PHS communication terminals and facilitate development of mobile communication terminals by a manufacturer that does not have wireless communication technology. A new wireless communication module that is a separate small module comprising only wireless communication portion and a new terminal supporting the wireless communication module are proposed. The wireless communication module of the invention is used by being inserted to a corresponding slot of a terminal supporting the wireless communication module of the invention that has a configuration excluding wireless communication portion from a conventional mobile communication terminal. The present invention reduces burdens of development on terminal manufacturers. The invention also enables a manufacturer that does not have wireless communication technology to develop an original terminal.
    Type: Application
    Filed: July 5, 2006
    Publication date: July 12, 2007
    Inventors: Nozomu Yasujima, Hiroshi Kawai, Kazuaki Kobayashi, Junichi Fukumoto, Takao Hanazuka, Hideto Funayoshi, Kenji Kawasaki, Tsukasa Akiyama
  • Publication number: 20070153367
    Abstract: A laser scan type fluorescence microscope comprises a laser light source section, an objective lens optical system by which excitation light from the laser light source section is condensed on a sample, a scanning means by which the excitation light from the laser light source section is scanned on a surface of the sample, a pupil projection lens arranged between the scanning means and the objective lens optical system, a detection optical system for detecting fluorescence which is emanated from the sample and has penetrated the objective lens optical system and the pupil projection lens. Here, the objective lens optical system has an image forming lens for forming an intermediate image of an objective lens and the sample, and a backside focal position of the objective lens becomes conjugate at a position near the scanning means by the image forming lens and the pupil projection lens, wherein the following is satisfied: 0.15?D/L?0.
    Type: Application
    Filed: November 24, 2004
    Publication date: July 5, 2007
    Inventor: Kenji Kawasaki
  • Publication number: 20070007963
    Abstract: The invention reduces a flow of a heat making an intrusion into an NMR probe, and uniformizes a spatial temperature generated in a sample pipe. A temperature modulated gas is supplied to a thermal anchor temperature modulated gas flow path constituted by a sample pipe insertion port around a sample pipe, and sample pipe insertion port structure bodies. A part of the temperature modulated gas is divided into a thermal anchor temperature modulated gas flow path by a temperature modulated gas division hole, and flows toward a thermal anchor. The thermal anchor is constituted by a porous member having a hole through which a gas can pass, and comes to the same temperature as the temperature modulated gas on the basis of a heat exchange with the temperature modulated gas.
    Type: Application
    Filed: July 11, 2006
    Publication date: January 11, 2007
    Inventors: Kenji Kawasaki, Minseok Park
  • Publication number: 20060285203
    Abstract: A microscope has an oil immersion system objective and an imaging lens to make observations by charging oil between a cover glass protecting a sample and the most sample-side lens surface. At least one of a plurality of lens units, placed on the image side of the most sample-side lens in the oil immersion system objective, is moved along the optical axis, and thereby a front focal distance and a front focal position can be adjusted so that a predetermined depth position of the sample is focused in a state where a working distance WD between the cover glass and the most sample-side lens surface in the oil immersion system objective is set to a condition, 0<WD?0.03 mm.
    Type: Application
    Filed: June 19, 2006
    Publication date: December 21, 2006
    Inventor: Kenji Kawasaki
  • Publication number: 20060238858
    Abstract: An observation or measurement device has, at least, an infinity-corrected objective lens and an imaging lens, and satisfies a condition, 4.56?D·NA??30, where D is the parfocal distance of the objective lens and NA? is the numerical aperture of the imaging lens. It is desirable to make a distance from the mount position of the objective lens to the most object-side surface of the imaging lens variable and to satisfy a condition, 0.5 FL<W<1.2 FL, where W is the variable amount of the distance from the mount position of the objective lens to the most object-side surface of the imaging lens, and FL is the focal length of the imaging lens. It is more desirable to satisfy conditions, 0.4<D/FL<5 and 1?D/?d<3, where ?d is the outside diameter of a connection at the mount of the objective lens.
    Type: Application
    Filed: March 23, 2006
    Publication date: October 26, 2006
    Inventors: Kenji Kawasaki, Atsushi Yonetani