Patents by Inventor Tadashi Yoshida

Tadashi Yoshida 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: 5505323
    Abstract: An interlocking male member is provided in a lower end portion of each side member. The interlocking male member has a projection extending beyond an outer surface of said side member and a bulge on its vertical wall which projects inwardly away from the projection. An interlocking female member is provided on an periphery of a bottom member to extend along at least portions thereof which correspond in position to the male members of the side members. The female member has a locking hole in which the projection of the male member is locked, and a recessed portion in which the bulges are locked. The side members are mounted to the bottom member in an upright position, by fitting the male members in the female member, while tiling the side members with respect to the bottom member, so that the projections are locked in the locking holes, and then rotating the side members toward the upright position so that the bulges are locked in the recessed portions.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: April 9, 1996
    Assignee: Kabushiki Kaisha Steel Center
    Inventors: Shinobu Naoki, Tadashi Yoshida, Osamu Tominaga, Katsuji Kitahata
  • Patent number: 5473096
    Abstract: The present invention relates to the compounds of the formula: ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, and R.sup.8 are independently hydrogen, lower alkyl which is optionally substituted, lower alkoxy which is optionally substituted, hydroxy, acyloxy, or halogen; R.sup.9 is hydrogen, hydroxy, acyloxy, lower alkyl which is optionally substituted, lower alkoxy which is optionally substituted, or lower alkylamino which is optionally substituted; E.sup.1 is hydrogen, or an ester residue; m is an integer of from 1 to 4;or a pharmaceutically acceptable salt thereof. The compounds of the present invention exhibit phospholipase A.sub.2 inhibitory activity, and can be used in treating inflammatory conditions.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: December 5, 1995
    Assignee: Shionogi & Co., Ltd.
    Inventors: Shigeru Matsutani, Tadashi Yoshida, Ryuji Sakazaki, Yasuhiko Fujii, Kazushige Tanaka
  • Patent number: 5456910
    Abstract: Novel antibiotic stalobacins A to I having physico-chemical properties as shown in Tables 1 to 4 are provided, which are excellent antibiotics showing marked effects on Gram-positive bacteria.
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: October 10, 1995
    Assignee: Shionogi & Co., Ltd.
    Inventors: Shigeru Matsutani, Tadashi Yoshida, Ryuji Sakazaki, Koichi Matsumoto, Shigeo Yagi, Bunji Kageyama, Yoshimi Kawamura, Toshiyuki Kamigauchi, Susumu Kamata
  • Patent number: 5448654
    Abstract: An image reduction apparatus includes a smoothing unit for smoothing binary image data, a binarization unit for binarizing an output from the smoothing unit, a detection unit for detecting an attribute of the binary image data smoothed by the smoothing unit, a plurality of correction units corresponding to a plurality of attributes, and a selector for selecting one of the correction units in accordance with the attribute detected by the detection unit. An output from the binarization unit is corrected by the correction unit selected by the selector.
    Type: Grant
    Filed: March 3, 1994
    Date of Patent: September 5, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Katayama, Mitsuru Maeda, Yasuji Hirabayashi, Tadashi Yoshida
  • Patent number: 5412486
    Abstract: An image processing apparatus receives first image data, and hierarchically reduces the size of the image represented by this first image data to generate second image data. An encoder generates encoded image data by encoding the second image data in a first mode, or by encoding the first image data in a second mode.
    Type: Grant
    Filed: August 26, 1993
    Date of Patent: May 2, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuuichi Bannai, Tadashi Yoshida, Yasuji Hirabayashi, Hidefumi Oosawa
  • Patent number: 5384868
    Abstract: An image information coding apparatus includes a cut-out or extracting unit for cutting out image information into blocks each having a predetermined size, e.g., 4.times.4 pixels, a preprocessing unit such as an orthogonal transformation unit (e.g., a Hadamard transformation unit) and a scalar quantization unit for performing predetermined preprocessing of the block as a matrix, a separator for separating a plurality of components (e.g., phase information, amplitude information, and zero information) from each element of the preprocessed matrix, information quantizers for coding individual pieces of information constituted by each component, and a synthesizer for synthesizing coding results.
    Type: Grant
    Filed: May 12, 1992
    Date of Patent: January 24, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsuru Maeda, Tadashi Yoshida
  • Patent number: 5371606
    Abstract: An image encoding apparatus has a forming unit for forming a second image having a different resolution on the basis of a first image, an encoding unit for separately encoding the first and second images, and a changing unit for changing, between the encoding operations of the first and second images, the number or positions of reference pixels referred to by the encoding unit for encoding.
    Type: Grant
    Filed: November 2, 1992
    Date of Patent: December 6, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Katayama, Mitsuru Maeda, Yasuji Hirabayashi, Tadashi Yoshida
  • Patent number: 5363219
    Abstract: In a color facsimile apparatus, a color image file, or the like, an encoding system suitable for a color image to be transmitted is promptly selected and the image data is transmitted. The apparatus has: the color image input unit 20 to read a color image; a plurality of color image encode units 22 and 24 including the white/black image encoding; the storage units 23 and 25 to store the encode data; the means 28 and 29 for decoding the encode data; the means 32 for displaying the decoded image; and the protocol means 27 with an apparatus on the partner side.
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: November 8, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tadashi Yoshida
  • Patent number: 5345517
    Abstract: An image reduction apparatus includes a smoothing unit for smoothing binary image data, a binarization unit for binarizing an output from the smoothing unit, a detection unit for detecting an attribute of the binary image data smoothed by the smoothing unit, a plurality of correction units corresponding to a plurality of attributes, and a selector for selecting one of the correction units in accordance with the attribute detected by the detection unit. An output from the binarization unit is corrected by the correction unit selected by the selector.
    Type: Grant
    Filed: June 8, 1992
    Date of Patent: September 6, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Katayama, Mitsuru Maeda, Yasuji Hirabayashi, Tadashi Yoshida
  • Patent number: 5341441
    Abstract: A coding apparatus divides digital image information into pixel blocks each having a size of m.times.n pixels, and subjects the image information to vector quantization in block units. The pixel blocks are orthogonally transformed and the characteristics and sequency components of the pixel blocks are detected. Each pixel block is divided into a plurality of sub-blocks in conformity with the detected sequency components. Respective ones of the plurality of divided and outputted sub-blocks are scalar-quantized into sub-vectors of a predetermined number of bits in conformity with the characteristics of the pixel blocks. Respective ones of the scalar-quantized values of the quantized sub-blocks are vector-quantized in conformity with the characteristics of the pixel blocks, these vector-quantized reproduction vector codes are combined and the result is subjected to further vector quantization.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: August 23, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsuru Maeda, Tadashi Yoshida
  • Patent number: 5324742
    Abstract: The present invention relates to a novel aldose reductase inhibitor of the formula: ##STR1## wherein X is methylene or carbonyl;R is ##STR2## R.sup.1, R.sup.2, R.sup.3, and R.sup.4 each is hydrogen or lower alkyl, to a method for producing the inhibitor by culturing Crucibulum sp. RF-3817 or its variants, and to an agent for inhibiting an aldose reductase comprising the inhibitor.
    Type: Grant
    Filed: May 8, 1991
    Date of Patent: June 28, 1994
    Assignee: Shionogi & Co., Ltd.
    Inventors: Tadashi Yoshida, Toshiyuki Kato, Yoshimi Kawamura, Koichi Matsumoto, Hiroshi Itazaki
  • Patent number: 5317411
    Abstract: Image encoding apparatus can operate in a plane sequential encoding mode and in a dot sequential encoding mode. Furthermore, the apparatus may automatically selects any one of these encoding modes or the modes may be selected manually.
    Type: Grant
    Filed: July 14, 1992
    Date of Patent: May 31, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tadashi Yoshida
  • Patent number: 5314911
    Abstract: The present invention relates to a compound represented by the formula I: ##STR1## which was isolated from the culture of Streptomyces prunicolor PA-48153 and has biological activity such as immunosuppressive activity, antitumor activity and antifungal activity.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: May 24, 1994
    Assignee: Shionogi Seiyaku Kabushiki Kaisha
    Inventors: Tadashi Yoshida, Kenzo Koizumi, Yoshimi Kawamura, Koichi Matsumoto, Hiroshi Itazaki
  • Patent number: 5309524
    Abstract: An image reducing apparatus for obtaining a reduced image from an image of an original size has: a filter to execute a filtering process to the image of the original size every image block of a predetermined size; a discriminating circuit to discriminate a structure of the image block filter processed by the filter; a correcting circuit to correct an output of the filter in accordance with the discriminated structure; and a binarization unit to binarize the output of the filter. By executing the reduction suitable for the image content in consideration of the peripheral images of the object pixel to be reduced and the peripheral reduced images, a reduced image can be obtained without extinguishing the content of the image of the original size, and especially, without fading or losing the thin lines in the reduced image.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: May 3, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuji Hirabayashi, Mitsuru Maeda, Tadashi Yoshida, Akihiro Katayama
  • Patent number: 5284870
    Abstract: The present invention relates to an aldose reductase inhibitor represented by the formula: ##STR1## wherein R.sub.1 is (CH.sub.2).sub.2 COOH and R.sub.2 is phenyl or p-hydroxyphenyl, or R.sub.1 and R.sub.2 are combined together to form a group of the formula: ##STR2## which was isolated from the fermentation products of Chaetomella circinoseta RF-3192.
    Type: Grant
    Filed: February 9, 1993
    Date of Patent: February 8, 1994
    Assignee: Shionogi Seiyaku Kabushiki Kaisha
    Inventors: Tadashi Yoshida, Toshiyuki Kato, Yoshimi Kawamura, Koichi Matsumoto, Hiroshi Itazaki
  • Patent number: 5278595
    Abstract: A liquid crystal projector is obliquely disposed in a lower front portion of a cabinet. A first mirror for reflecting light beams of R, G and B coming from the liquid crystal projector is disposed obliquely with respect to the top-bottom, right-left and front-rear directions of the cabinet. A second mirror is disposed so as to be inclined toward a screen. With this configuration, the optical axis of the light beams that extends from the liquid crystal projector to the screen is folded back three-dimensionally. In the liquid crystal projector, the optical axis of a condensing reflector may be slightly inclined from the central axis of a projection lens.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: January 11, 1994
    Assignee: Pioneer Electronic Corporation
    Inventors: Masami Nishida, Masataka Izawa, Tadashi Yoshida
  • Patent number: 5271072
    Abstract: An image reduction system which reduces binary level images is disclosed. In the system, a reduction pixel value is determined by using, as reference pixels for a filter operation: a plurality of surrounding pixels including an object pixel to be reduced; and reduced pixels, from among pixels which have already been reduced, said reduced pixels being at least; a reduced pixel located before the pixel to be determined: a reduced pixel, located on the preceding line, which lies directly above the pixel to be determined; and a reduced pixel before said reduced pixel located on the preceding line. When a pixel referenced during the filter operation is included in a specific pattern, an exception process for correcting binary level results is provided.
    Type: Grant
    Filed: July 24, 1992
    Date of Patent: December 14, 1993
    Assignees: Canon Kabushiki Kaisha, Kokusai Denshin Denwa Co. Ltd.
    Inventors: Tadashi Yoshida, Toshiaki Endoh, Naoto Kawamura, Hisaharu Kato
  • Patent number: 5267052
    Abstract: An image processing method and apparatus encodes input image data, and performs processing using encoded image data. The method and apparatus can progressively encode input images, store and transmit the encoded images, and display a plurality of low-resolution images on one picture surface.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: November 30, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yuuichi Bannai, Tadashi Yoshida, Yasuji Hirabayashi, Hidefumi Oosawa
  • Patent number: 5171836
    Abstract: This invention provides a novel compound of the formula: ##STR1## wherein X is L-HyPro or L-Pro, R is --CH.sub.3 or --CH(CH.sub.3).sub.2, and n is an integer from 9 to 12, or its salt, a process for producing the compound which comprises cultivating a microorganism which belongs to the genus Pseudomonas and produces the compound in a medium and recovering the compound from the medium and a biologically pure culture of Pseudomas sp. PB-6250 producing the compound.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: December 15, 1992
    Assignee: Shionogi & Co., Ltd.
    Inventors: Tadashi Yoshida, Jun'ichi Shoji, Teruo Hattori, Koichi Matsumoto
  • Patent number: 5162923
    Abstract: An image encoding method, and an apparatus therefor, enabling rapid comprehension of the outline of the entire image promptly, at the decoding of the encoded image information, and also an image encoding method, and an apparatus therefor, capable of efficient encoding adapted for the state of the image to be encoded. Image information is divided into plural block, each consisting of plural pixels, the frequency of the image in each block is analyzed, the frequency components of the image in each block are separated into plural bands, and the frequency components contained in each of said plural bands are encoded.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: November 10, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tadashi Yoshida, Naoto Kawamura, Yoshihiro Ishida, Yasuji Hirabayashi, Mitsuru Maeda