Patents by Inventor Hisatoyo Kato

Hisatoyo Kato 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: 7355063
    Abstract: The compound represented by the following formula (1): wherein A, B, R1, R2, R3 and Z are as defined in the specification is analogous to shogaol and gingerol useful in the fields of foods, medicines, quasi-drugs, cosmetics, etc., and more highly active in tyrosinase activity inhibition, etc. than shogaol and gingerol.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: April 8, 2008
    Assignee: Toagosei Co., Ltd.
    Inventors: Shuhei Yamaguchi, Hisatoyo Kato
  • Publication number: 20060173072
    Abstract: The compound represented by the following formula (1): wherein A, B, R1, R2, R3 and Z are as defined in the specification is analogous to shogaol and gingerol useful in the fields of foods, medicines, quasi-drugs, cosmetics, etc., and more highly active in tyrosinase activity inhibition, etc. than shogaol and gingerol.
    Type: Application
    Filed: March 26, 2004
    Publication date: August 3, 2006
    Inventors: Shuhei Yamaguchi, Hisatoyo Kato
  • Patent number: 7049455
    Abstract: In accordance with the invention, an industrial process for producing shogaols useful in the fields of for example foods, flavor, pharmaceutical products, qui-pharmaceutical products and cosmetics can be provided. The invention relates to novel intermediates represented by the following general formula and a process for producing shogaols from the intermediates. In accordance with the invention, shogaols can readily be produced, of which mass production has been difficult because shogaols have been produced only by the extraction process from a natural ginger. Intermediates; (in the formula (1), R1 represents hydrogen atom or methyl group; R2 represents optionally branched alkyl group with one to 18 carbon atoms; R3 and R4 each independently represents hydrogen atom, a lower alkyl group or a protective group of the phenolic hydroxyl group; A represents an alkylene group with one to 4 carbon atoms; and X represents benzenesulfonyl group or toluenesulfonyl group.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: May 23, 2006
    Assignee: Toagosei Co., Ltd.
    Inventors: Hisatoyo Kato, Shuhei Yamaguchi
  • Publication number: 20050171211
    Abstract: The invention provides novel compounds with a chemical structure similar to that of gingerol useful as a component for foods, pharmaceutical products, cosmetics and the like. After intensive investigations, the inventors found the gingerol analogues represented by the following general formulae (1) and (2). Additionally, the inventors found that these compounds had excellent properties as an inhibitor of tyrosinase activity and an antioxidant. By using the following compounds of the invention as a component for cosmetics, for example, cosmetics suppressing the generation of speckles and spots can be produced. By using the compounds as a component for foods, quality deterioration due to the oxidation of foods can be prevented. Gingerol analogues represented by the following general formula (1). (In the formula (1), R1 represents an alkyl group with one to 18 carbon atoms; R2 is hydrogen atom or methyl group; R3 is methyl group or ethyl group; and A represents an alkylene group with one to 4 carbon atoms.
    Type: Application
    Filed: May 23, 2003
    Publication date: August 4, 2005
    Inventors: Hisatoyo Kato, Shuhei Yamaguchi
  • Publication number: 20050159611
    Abstract: In accordance with the invention, an industrial process for producing shogaols useful in the fields of for example foods, flavor, pharmaceutical products, qui-pharmaceutical products and cosmetics can be provided. The invention relates to novel intermediates represented by the following general formula and a process for producing shogaols from the intermediates. In accordance with the invention, shogaols can readily be produced, of which mass production has been difficult because shogaols have been produced only by the extraction process from a natural ginger. Intermediates; (in the formula (1), R1 represents hydrogen atom or methyl group; R2 represents optionally branched alkyl group with one to 18 carbon atoms; R3 and R4 each independently represents hydrogen atom, a lower alkyl group or a protective group of the phenolic hydroxyl group; A represents an alkylene group with one to 4 carbon atoms; and X represents benzenesulfonyl group or toluenesulfonyl group.
    Type: Application
    Filed: April 25, 2003
    Publication date: July 21, 2005
    Inventors: Hisatoyo Kato, Shuhei Yamaguchi
  • Patent number: 6000751
    Abstract: An extra seat back 7 is arranged behind a regular seat 4, 5 of a vehicle in such a manner that the extra seat back 7 can take a first position embedded in a recess of a luggage floor, a second position rised up from the luggage floor, and a third position of a full-flat state.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: December 14, 1999
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Hisatoyo Kato, Takao Okonogi
  • Patent number: 5270162
    Abstract: An autoradiographic gene-screening method employing a hybridization process, which comprises:(1) a step of transferring at least a portion of nucleic acids, fragments thereof or derivatives thereof resolved on a medium onto a transfer support to fix them thereonto;(2) a step of hybridizing the nucleic acids, fragments thereof or derivatives thereof fixed onto said transfer support with radioactively labeled probes; and(3) a step of obtaining locational information on the radioactively labeled substances on said transfer support, which comprises placing said transfer support having been subjected to the hybridization and a stimulable phosphor sheet in layers for a given period of time to cause said sheet to absorb at least a portion of radiation energy emitted by the radioactively labeled substances on said transfer support, exciting said stimulable phosphor sheet with an electromagnetic wave to release the radiation energy stored in said sheet as stimulated emission, and detecting the stimulated emission.
    Type: Grant
    Filed: July 29, 1991
    Date of Patent: December 14, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Shiraishi, Junji Miyahara, Hisatoyo Kato
  • Patent number: 5260190
    Abstract: An autoradiographic process for obtaining information on one or two dimensional location of radioactively labeled substances contained in a sample selected from the group consisting of tissue of an organism and a medium containing tissue of an organism and/or substances such as DNA originating from an organism,which comprises:placing said sample and a stimulable phosphor sheet having a phosphor layer comprising a stimulable phosphor dispersed in a binder together in layers for a certain period to cause said phosphor sheet to absorb at least a portion of radiation energy emitted by the radioactively labeled substances in said sample;scanning said phosphor sheet with an electromagnetic wave to release at least a portion of radiation energy stored in said phosphor sheet as stimulated emission; anddetecting the stimulated emission to obtain locational information on the radioactively labeled substances in the sample.
    Type: Grant
    Filed: July 6, 1989
    Date of Patent: November 9, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Shiraishi, Junji Miyahara, Hisatoyo Kato
  • Patent number: 5026838
    Abstract: Phosphoramidite compounds of the general formula ##STR1## wherein each of R.sub.1 and R.sub.2 represents a hydroxyl group having a protective group, or the group --OR.sub.4, R.sub.3 represents a hydrogen atom, a hydroxyl group having a protective group, or the group --OR.sub.4, R.sub.4 represents the group ##STR2## X represents a secondary amino group, R.sub.5 represents an allylic residue or a protective group capable of being split off by beta-cleavage, and B.sup.AOC represents a nucleoside base residue in which the amino or imino group is protected with an allyloxycarbonyl-type residue, with the proviso that only one of R.sub.1, R.sub.2 and R.sub.3 represents the group--OR.sub.4. The compounds can be produced by reacting a nucleoside represented by the general formula ##STR3## wherein each of R.sub.1 ' and R.sub.2 ' represents a hydroxyl group which may have a protective group, R.sub.3 ' represents a hydrogen atom, or a hydroxyl group which may have a protective group, and B.sup.
    Type: Grant
    Filed: August 4, 1988
    Date of Patent: June 25, 1991
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Ryuji Nojiri, Yoshihiro Hayakawa, Mamoru Uchiyama, Hisatoyo Kato, Yasuyoshi Chino, Shinichiro Tahara
  • Patent number: 4865967
    Abstract: An autoradiographic gene-screening method employing a hybridization process, which comprises:(1) a step of transferring a portion of genetic clones cultured on a culture medium onto a filter to fix them thereonto;(2) a step of hybridizing the genes of said clones fixed onto said filter with radioactively labeled probes;(3) a step of obtaining two dimensional information on the location of the radioactively labeled substances on the filter which comprises placing said filter having been subjected to the hybridization and a stimulable phosphor sheet in layers for a given period of time to cause said stimulable phosphor sheet to absorb at least a portion of radiation energy emitted by the radioactively labeled substances on the filter, exciting said sheet with an electromagnetic wave to release the radiation energy stored in said sheet as stimulated emission, and detecting the stimulated emission to obtain a locational information on the radioactively labeled substances on the filter; and(4) a step recovering th
    Type: Grant
    Filed: November 30, 1987
    Date of Patent: September 12, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Shiraishi, Junji Miyahara, Hisatoyo Kato
  • Patent number: 4864135
    Abstract: A radiation image read-out and reproducing apparatus comprises a section for feeding a stimulable phosphor sheet carrying a radiation image stored thereon, a section for feeding a developed film carrying a radiation image recorded thereon, a section for feeding a recording sheet, a light beam scanning section, and conveyance systems for conveying the stimulable phosphor sheet, the film and the recording sheet respectively to the light beam scanning section and then out of the light beam scanning section. The light beam scanning section detects the radiation image by scanning the stimulable phosphor sheet or the film, and reproduces the detected radiation image as a visible image on the recording sheet.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: September 5, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisatoyo Kato, Toshitaka Agano
  • Patent number: 4710626
    Abstract: In a radiation image recording and read-out system in which a radiation image is once recorded on a recording material comprising a stimulable phosphor layer, the recording material is then scanned with a laser beam, and light emitted from the recording material is photoelectrically read out to reproduce a visible image, a gas ion laser beam having a wavelength shorter than 600 nm is employed as the laser beam. The recording material is fixed on a supporting material, circulated and reused to record radiation images thereon. The apparatus comprises a mechanism for circulating the recording material with respect to the image read-out section by repeatedly moving the supporting material and the image read-out section with respect to each other, and an erasing apparatus for eliminating the radiation energy remaining in the recording material after the read-out step.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: December 1, 1987
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kenji Takahashi, Chiyuki Umemoto, Hisatoyo Kato
  • Patent number: 4676582
    Abstract: A radiation image reader/recorder which mainly scans an optical beam (2, 22) emitted from the optical beam generation means of a laser light source (1, 21) via a light deflector (4, 25) with a frequency less than a main scanning frequency of 1 KHz, and which sub-scans at a sub-scanning density of more than 2.5 lines/mm, reading or recording a radiation image of continuous halftones. A cover (11, 29) is provided over at least at the optical passage between the means (1, 21) and the deflector (4, 25), thereby preventing the flow of air.
    Type: Grant
    Filed: October 18, 1983
    Date of Patent: June 30, 1987
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisatoyo Kato, Yasuhiro Kawai, Yuji Ohara, Yoshihiko Okamoto, Yutaka Taniguchi, Kazuo Horikawa
  • Patent number: 4617468
    Abstract: A stimulable phosphor sheet preferably employable in autoradiography which comprises a substrate, a phosphor layer being provided on the substrate and comprising a stimulable phosphor dispersed in a binder, and a protective layer provided on the phosphor layer, characterized in that the surface of the protective layer is hydrophilic.The surface of the protective layer can be made hydrophilic by hydrophilic processing applied thereto or provision of a hydrophilic layer thereon.
    Type: Grant
    Filed: February 23, 1984
    Date of Patent: October 14, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Shiraishi, Hisatoyo Kato, Junji Miyahara
  • Patent number: 4603254
    Abstract: A stimulable phosphor sheet carrying a radiation image stored therein is scanned with stimulating rays, and the light emitted from the stimulable phosphor sheet in proportion to the radiation energy stored therein is detected and converted into an electric signal. The electric signal is converted to a digital signal. On the basis of the digital signal, there are created digital data in an amount necessary for reproducing the radiation image for use in diagnosis, and digital data for storage obtained by reducing the amount of information to a fraction of the amount of the digital data for diagnosis. The two kinds of digital data are recorded in separate recording media.
    Type: Grant
    Filed: October 25, 1983
    Date of Patent: July 29, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masao Takano, Hisatoyo Kato
  • Patent number: 4589731
    Abstract: A light-shielding cover for a light guide member guiding light emitted from a stimulable phosphor sheet carrying a radiation image stored therein when the stimulable phosphor sheet is exposed to stimulating rays comprises a flexible light-shielding member for covering the whole of the side faces of the light guide member without closely contacting the side faces, and a pair of rod-like core metal members fitted to the flexible light-shielding member for sandwiching a portion near a linear light input face of the light guide member from both sides thereof.
    Type: Grant
    Filed: September 22, 1983
    Date of Patent: May 20, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yutaka Taniguchi, Hisatoyo Kato
  • Patent number: 4590517
    Abstract: Two or more stimulable phosphor sheets are exposed to a radiation passing through an object under conditions different from one another, and radiation images of the object at least partially different from one another are recorded on the stimulable phosphor sheets. The stimulable phosphor sheets are then scanned with stimulating rays to convert the radiation images into light, which is photoelectrically read out and converted into digital image signals. The digital image signals are subjected to a subtraction processing with respect to the corresponding picture elements of the images, thereby to obtain a signal for forming an image of a specific structure of the object.
    Type: Grant
    Filed: March 21, 1983
    Date of Patent: May 20, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisatoyo Kato, Takao Komaki
  • Patent number: 4584483
    Abstract: After a radiation image stored in a stimulable phosphor sheet is read out, first erasing is conducted to erase radiation energy remaining in the stimulable phosphor sheet, and then second erasing is conducted to erase fog developing in the stimulable phosphor sheet immediately before the stimulable phosphor sheet is again used for recording a radiation image. The exposure amount in the second erasing is controlled according to the time interval between the first erasing and the second erasing.
    Type: Grant
    Filed: May 18, 1983
    Date of Patent: April 22, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hisatoyo Kato
  • Patent number: 4578581
    Abstract: In a radiation image read-out system wherein a stimulable phosphor sheet carrying a radiation image stored therein is exposed to stimulating rays which cause it to emit light in proportion to the radiation energy stored, and the emitted light is photoelectrically read out to reproduce a visible image, preliminary read-out for detecting the radiation image is conducted by uniformly exposing the whole surface of the stimulable phosphor sheet to stimulating rays prior to final read-out, and detecting the amount of light emitted from the whole surface of the stimulable phosphor sheet. Or, preliminary read-out is conducted by exposing the stimulable phosphor sheet to stimulating rays slitwise over the entire sheet width while the slit-like exposure section is moved with respect to the stimulable phosphor sheet, and detecting the amount of light emitted from the sheet.
    Type: Grant
    Filed: July 26, 1983
    Date of Patent: March 25, 1986
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Tanaka, Hisatoyo Kato
  • Patent number: D492398
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: June 29, 2004
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Hisatoyo Kato, Yuichiro Oka