Patents by Inventor Mitsuo Hiramatsu

Mitsuo Hiramatsu 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: 20060257489
    Abstract: In a method for finely pulverizing an organic compound 5 in treatment target liquid 2 to manufacture fine particles of the organic compound 5, a laser beam having a wavelength which is longer than the light absorption band of the organic compound 5 or corresponds to an absorption wavelength of solvent is irradiated to the treatment target liquid 2 to finely pulverize the organic compound 5, thereby manufacturing fine particles of the organic compound 5. According to this manufacturing method, the fine particles can be manufactured with sufficiently preventing photochemical reactions of the organic compound 5 in the treatment target liquid 2. Accordingly, a fine particle manufacturing method and apparatus that can manufacture fine particles while sufficiently preventing photochemical reactions in the organic compound, fine particles, and injectable agent and a manufacturing method for the injectable agent can be implemented.
    Type: Application
    Filed: March 5, 2004
    Publication date: November 16, 2006
    Inventors: Tomonori Kawakami, Mitsuo Hiramatsu, Hiroshi Satozono, Tokio Takagi
  • Publication number: 20060103060
    Abstract: With this invention, in a nanoparticle production method, wherein nanoparticles are produced by irradiating a laser light irradiation portion 2a of a to-be-treated liquid 8 with a laser light, in which suspended particles are suspended, to pulverize the suspended particles in laser light irradiation portion 2a, laser light irradiation portion 2a of to-be-treated liquid 8 is cooled. In this case, by the cooling of to-be-treated liquid 8, the respective suspended particles are cooled in their entireties. When the portion 2a of this to-be-treated liquid 8 is irradiated with the laser light, the laser light is absorbed at the surfaces of the suspended particles at portion 2a. Since to-be-treated liquid 8 is cooled during this process, significant temperature differences arise between the interiors and surfaces of the suspended particles and between the surfaces of the suspended particles and the to-be-treated liquid at laser light irradiation portion 2a, and highly efficient nanoparticulation is realized.
    Type: Application
    Filed: August 28, 2003
    Publication date: May 18, 2006
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Tomonori Kawakami, Bo Li, Mitsuo Hiramatsu
  • Patent number: 6396584
    Abstract: An absorbance measuring pipette includes a pipette and a pipette adapter. The pipette adapter has a pipette attachment portion for receiving the front end of the pipette and a tip attachment portion for attaching a tip and is attachable between the pipette and the tip. The pipette adapter has an inner space continuous with respective internal spaces of the pipette and tip upon attachment. The pipette adapter includes a test light introducing window for introducing a test light into the inner space from outside and a reflecting mirror for reflecting toward the sample suction port of the tip by way of an opening in the tip attachment portion the test light introduced into the inner space through the test light introducing window.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: May 28, 2002
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Takeshi Taguchi, Mitsuo Hiramatsu
  • Patent number: 5919647
    Abstract: An apparatus including: a sprayer for inoculating a microbe on a first division divided from at least one sample of a plant to be examined; sample leaving device for leaving a second division divided from the sample not inoculated with the microbe and the first division inoculated with the microbe, for a predetermined period of time under a predetermined condition; first and second photodetector for respectively measuring the quantities of luminescence emitted from the first and second divisions which have been left standing by the sample leaving device; and a computer for comparing the quantities of the luminescence measured by the first and second photodetector, thereby to examine the resistance or susceptibility of the plant to the microbe.
    Type: Grant
    Filed: September 5, 1997
    Date of Patent: July 6, 1999
    Assignees: Hamamatsu Photonics K.K., Shizuoka Prefecture
    Inventors: Mitsuo Hiramatsu, Kazuyoshi Ohta, Takahiro Makino, Kimihiko Kato, Sakio Suzuki, deceased
  • Patent number: 5789569
    Abstract: The present invention relates to an isothiocyanated cyclodextrin derivative which can label various kinds of organic compounds containing an amino group as their functional group. In some embodiments, the derivative can be a cyclodextrin derivative in which at least one primary hydroxyl group is substituted by an isothiocyanato group and expressed by the compound expressed by formula (I), ##STR1## wherein n is an integer from 5 to 7.
    Type: Grant
    Filed: July 5, 1996
    Date of Patent: August 4, 1998
    Assignee: Laboratory of Molecular Biophotonics
    Inventors: Mitsuo Hiramatsu, Hiroshi Satozono, Tomomi Suzuki, Yasuhiro Mizusawa
  • Patent number: 5585044
    Abstract: The liquid treating method according to the present invention introduces a bubble into liquid phase and applies vibration waves, such as ultrasonic waves, from each sides of the bubble. Collision of the vibration waves with the bubble imparts the compression pressure to the bubble. This effect is used to dissolve a gas forming the bubble into the liquid phase or to improve liquid quality of this liquid phase.
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: December 17, 1996
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Tomonori Kawakami, Masaru Matsui, Hiroe Sato, Mitsuo Hiramatsu, Shinichiro Aoshima
  • Patent number: 5311350
    Abstract: The present invention provides an optical device according to this invention comprising a light transmitting optical member of a high molecular material containing mobile ions, and a pair of electrodes formed on surfaces of the optical member, a required potential difference being provided between the electrodes so as to cause ion conduction in the optical member and to reversibly vary a refractive index of the optical member. According to this invention, a refractive index is reversibly varied due to ion conduction, whereby the modulation of a transmitted beam or a reflected beam by the optical device can be reversibly controlled.
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: May 10, 1994
    Assignee: Hamamatsu Photonics K.K.
    Inventors: Mitsuo Hiramatsu, Isuke Hirano, Tatsuo Fujinami
  • Patent number: 4762418
    Abstract: An angle-of-optical-rotation variation measuring apparatus for measuring the highly speedy time-variation of an angle of optical rotation of an optical active substance. The angle-of-optical-rotation variation measuring apparatus comprises an exciting pulse generating source for producing and providing an exciting pulse to a specimen, a light source for providing a monochromatic linearly polarized light beam with the specimen, continuous analysis means for optically rotating the light beam passed through the specimen at successively different angles in the direction of a reference line predetermined to the apparatus and transmitting as an output light beam a part of the light beam which is optically rotated at a predetermined angle, and a streak tube for receiving the output light beam from the analysis means in a direction perpendicular to a time axis of the streak tube.
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: August 9, 1988
    Assignee: Hamamatsu Photonics Kabushiki Kaisha
    Inventors: Toshiaki Ito, Mitsuo Hiramatsu, Isuke Hirano
  • Patent number: 4220705
    Abstract: A multi-colored display polarizer is manufactured by supporting on a transparent substrate a multi-colored polarizing film which is produced by a required number of repetitions, each using a coloring means producing a different color, a sequence of operations comprising coating a photosensitive resin onto the surface of a polarizing film blank and drying the same, exposing the coated film through a photographic negative having a desired pattern thereon to photo-set a portion of the film corresponding to the transparent portion of the negative, developing the thus exposed film, coloring the thus developed film with a suitable coloring means, and removing the photosensitive resin remaining on said photoset portion of the film.
    Type: Grant
    Filed: September 12, 1978
    Date of Patent: September 2, 1980
    Assignee: Sanritsu Denki Kabushikikaisha
    Inventors: Shigeyoshi Sugibuchi, Mitsuo Hiramatsu, Takeo Aizawa