Patents by Inventor Shuichi Sakamoto

Shuichi Sakamoto 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: 7343618
    Abstract: A video content transmitting system is provided in which a video content transmitting server among a plurality of servers is automatically determined as to which server can establish a network bandwidth of each of all routes for video content transmission to a proper address of a video content play terminal by using a network protocol usable by the terminal. Information of a network protocol and a network route bandwidth used between the server and terminal is stored at a protocol information manager and a bandwidth information manager. In response to a video content transmission request from a terminal, bandwidths necessary for the routes to the terminal are established and video contents are transmitted by using the network protocol usable by the terminal.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: March 11, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Shuichi Sakamoto, Koichi Shibata
  • Publication number: 20070032592
    Abstract: A rubber composition for a tire tread with which a tire improving grip performance under a high temperature condition can be prepared. A rubber composition for a tire tread contains (A) a diene rubber, (B) at least one kind of organometallic salt selected from the group consisting of magnesium acetate, calcium acetate, magnesium propionate and calcium propionate, and (C) a metallic compound.
    Type: Application
    Filed: July 24, 2006
    Publication date: February 8, 2007
    Inventors: Takeo Nakazono, Shuichi Sakamoto
  • Publication number: 20060195602
    Abstract: A video server for distributing a digitized video content includes a unit for determining whether or not a video content requested from a terminal is stored in the video server, a unit for issuing a transmission request to another server for transmitting the video thereto in accordance with the HTTP protocol when the video content requested from the terminal is not stored in the video server, and a unit for receiving the video content transmitted from the other video server in accordance with the HTTP protocol, and transmitting the video content to the terminal in accordance with IP multicast or HTTP protocol.
    Type: Application
    Filed: April 19, 2006
    Publication date: August 31, 2006
    Inventors: Koichi Shibata, Masaru Igawa, Koichi Morita, Shuichi Sakamoto
  • Patent number: 7069332
    Abstract: A video server for distributing a digitized video content includes a unit for determining whether or not a video content requested from a terminal is stored in the video server, a unit for issuing a transmission request to another server for transmitting the video thereto in accordance with the HTTP protocol when the video content requested from the terminal is not stored in the video server, and a unit for receiving the video content transmitted from the other video server in accordance with the HTTP protocol, and transmitting the video content to the terminal in accordance with IP multicast or HTTP protocol.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: June 27, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Koichi Shibata, Masaru Igawa, Koichi Morita, Shuichi Sakamoto
  • Publication number: 20060089451
    Abstract: The present invention provides a rubber composition for a tire tread which can prepare a tire having improved grip properties under conditions of a high temperature, and a pneumatic tire comprising the same. The present invention relates to the rubber composition for a tire tread containing more than 5 parts by weight of a basic antioxidant based on 100 parts by weight of the diene rubber components, wherein a metallic compound is a metallic compound comprising (1) a metallic salt of an organic carboxylic acid or (2) an inorganic metallic salt and an acid, and the pneumatic tire having a tire tread comprising the same.
    Type: Application
    Filed: August 19, 2005
    Publication date: April 27, 2006
    Inventors: Takeo Nakazono, Shuichi Sakamoto
  • Publication number: 20050096424
    Abstract: The present invention provides a rubber composition, which has improved gripping performance that is required in a competition tire, high hardness and high stiffness. Specifically, the present invention provides a rubber composition comprising 10 to 100 parts by weight of carbon black having nitrogen-adsorbing specific surface area of 160 to 300 m2/g, and 15 to 70 parts by weight of an oil, based on 100 parts by weight of a rubber component comprising 20 to 95% by weight of a styrene butadiene copolymer rubber having styrene content of at least 30% and vinyl content of at least 30% and 5 to 80% by weight of butadiene rubber, and silica in an amount of 20 to 100% by weight of the carbon black; wherein the total amount of the carbon black and the silica is 20 to 120 parts by weight.
    Type: Application
    Filed: October 8, 2004
    Publication date: May 5, 2005
    Inventors: Hideki Otsuji, Shuichi Sakamoto, Akihiro Mine
  • Patent number: 6884415
    Abstract: The antioxidation food product of the present invention is produced by fermenting a food product containing bacteria having catalase activity, such as Lactobacillus plantarum, in the presence of a manganese-containing natural material. The antioxidation food product has antioxidation activity in viva, including the digestive tract, by simultaneously expressing a superoxide dismutase-like activity and a catalase activity, and is effective for preventing disease caused by active oxygen.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: April 26, 2005
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Masamichi Toba, Shigeto Uchiyama, Reiko Ohta, Seiichi Shimizu, Shuichi Sakamoto
  • Patent number: 6772193
    Abstract: In a network cache and a cache control method involving the transfer of a large volume of data as the time of reproduction of multimedia data including video data, a stabilized data transfer is made by eliminating the waste of cached data or a useless cache processing which may be caused by the interruption of a user's operation. When a data transfer request from a user terminal connected to a local network is made to a server existing on the internet, a user request processing program starts a cache program. The cache program performs a cache processing independently of the data delivery to the requesting user terminal by the user request processing program so that even if the user's request is interrupted, the storage of transferred data into a cache file is performed without ceasing. Also, a required bit rate for data made an object of transfer is analyzed for comparison with a network throughput between the server and the network cache.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: August 3, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Masaru Igawa, Koichi Shibata, Shuichi Sakamoto
  • Patent number: 6642264
    Abstract: This invention relates to novel thiazolo[3,2-a]benzoimidazole derivatives represented by the following general formula (I). The compounds provided by the invention act specifically on metabotropic glutamate receptors and are used as medicaments. The invention also provides novel compounds useful as intermediates for the synthesis of the compounds of the invention. (Symbols in the formula represent the following meanings. R1: carbamoyl, carbonyl, oxy, amino, carbonylamino or the like which may be substituted; R2: hydrogen, lower alkyl or the like; and R3, R4 and R5: hydrogen, lower alkyl and the like which may be the same or different from one another.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: November 4, 2003
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Satoshi Hayashibe, Hirotsune Itahana, Masamichi Okada, Atsuyuki Kohara, Kyoichi Maeno, Kiyoshi Yahiro, Itsuro Shimada, Kazuhito Tanabe, Kenji Negoro, Takashi Kamikubo, Shuichi Sakamoto
  • Publication number: 20020064518
    Abstract: The antioxidation food product of the present invention is a fermented product produced by adding a manganese-containing natural material such as tea and fermenting with bacteria having a catalase activity (e.g. Lactobacillus plantarum). The antioxidation food product has an antioxidation action in the living body including the interior of a digestive tract by expressing a superoxide dismutase-like activity and a catalase activity, simultaneously, and is effective for preventing diseases caused by active oxygen.
    Type: Application
    Filed: December 21, 2001
    Publication date: May 30, 2002
    Inventors: Masamichi Toba, Shigeto Uchiyama, Reiko Ohta, Seiichi Shimizu, Shuichi Sakamoto
  • Publication number: 20010025378
    Abstract: A video content transmitting system is provided in which a video content transmitting server among a plurality of servers is automatically determined as to which server can establish a network bandwidth of each of all routes for video content transmission to a proper address of a video content play terminal by using a network protocol usable by the terminal. Information of a network protocol and a network route bandwidth used between the server and terminal is stored at a protocol information manager and a bandwidth information manager. In response to a video content transmission request from a terminal, bandwidths necessary for the routes to the terminal are established and video contents are transmitted by using the network protocol usable by the terminal.
    Type: Application
    Filed: January 19, 2001
    Publication date: September 27, 2001
    Inventors: Shuichi Sakamoto, Koichi Shibata
  • Publication number: 20010018772
    Abstract: A video server for distributing a digitized video content includes a unit for determining whether or not a video content requested from a terminal is stored in the video server, a unit for issuing a transmission request to another server for transmitting the video thereto in accordance with the HTTP protocol when the video content requested from the terminal is not stored in the video server, and a unit for receiving the video content transmitted from the other video server in accordance with the HTTP protocol, and transmitting the video content to the terminal in accordance with IP multicast or HTTP protocol.
    Type: Application
    Filed: December 20, 2000
    Publication date: August 30, 2001
    Inventors: Koichi Shibata, Masaru Igawa, Koichi Morita, Shuichi Sakamoto
  • Patent number: 6245796
    Abstract: A tricyclic pyrrole or pyrazole derivative represented by the following general formula (I), or a pharmaceutically acceptable salt thereof, which shows strong affinity and selectivity for the 5-HT2C receptor and is useful for the treatment of central nervous system diseases such as sexual disorders, eating disorders, anxiety, depression and sleeping disorders. (In the above formula, each symbol means as follows; Y ring: an unsaturated five-membered ring which may have 1 to 3 of one or more types of hetero atom(s) each selected from the group consisting of a nitrogen atom, an oxygen atom and a sulfur atom or an unsaturated six-membered ring having 1 or 2 nitrogen atom(s), X: a bond or a carbon atom, a double bond or a single bond, V: a nitrogen atom or a group represented by a formula CH, and A: a straight or branched lower alkylene group which may be substituted with a halogen atom or a cycloalkyl group).
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: June 12, 2001
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kyoichi Maeno, Ken-ichi Kazuta, Hideki Kubota, Itsuro Shimada, Tetsuya Kimizuka, Shuichi Sakamoto, Fumikazu Wanibuchi
  • Patent number: 6228358
    Abstract: The antioxidation food product of the present invention is produced by fermenting a food product containing bacteria having catalase activity, such as Lactobacillus plantarum, in the presence of a manganese-containing natural material. The antioxidation food product has antioxidation activity in vivo, including the digestive tract, by simultaneously expressing a superoxide dismutase-like activity and a catalase activity, and is effective for preventing diseases caused by active oxygen.
    Type: Grant
    Filed: January 10, 1995
    Date of Patent: May 8, 2001
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Masamichi Toba, Shigeto Uchiyama, Reiko Ohta, Seiichi Shimizu, Shuichi Sakamoto
  • Patent number: 6201049
    Abstract: A rubber composition which is superior in ozone resistance and is hard to be discolored brown and white which comprises 0.5 to 2.5 parts by weight of a wax containing a component with 45 or more carbon atoms and having an average number of carbon atoms of 28 to 38 and 3.0 to 7.0 parts by weight of antioxidant containing 30 to 100% by weight of N-(1-methylheptyl)-N′-phenyl-p-phenylenediamine per 100 parts by weight of a diene rubber component.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: March 13, 2001
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Shuichi Sakamoto, Masato Kawase, Noboru Wakabayashi, Isamu Tsumori, Marina Kotani, Yoichi Mizuno
  • Patent number: 6133258
    Abstract: Neuroprotective agents based on inhibition of kainic acid neurotoxicity and compounds useful as neuroprotective agents based on inhibition of kainic acid neurotoxicity. An inhibitors of kainic acid neurotoxicity, comprising as an active ingredient a pyridothiazine derivative represented by the following general formula (I) or a pharmaceutically acceptable salt thereof, and a pyridothiazine derivative represented by the following general formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## wherein symbols in the formula have the following respective meanings: the ring A: a pyridine ring; ##STR2## R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 may be the same or different and each represent a hydrogen atom or a lower alkyl, cycloalkyl, alkenyl, aryl, carboxyl or lower alkoxycarbonyl group which may have substituent(s), or are not present, with the proviso that R.sup.2 and R.sup.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: October 17, 2000
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Jun-ichi Shishikura, Hiroshi Inami, Tomoyuki Yasunaga, Masaaki Hirano, Shuichi Sakamoto, Kazushige Ohno, Masamichi Okada, Shin-ichi Tsukamoto
  • Patent number: 6121264
    Abstract: Imidazole-substituted quinoxalinedione derivatives represented by the following general formula (I) or pharmaceutically acceptable salts thereof and pharmaceutical compositions useful as glutamate receptor antagonists and the like, which comprise said compounds or salts thereof and pharmaceutically acceptable carriers. ##STR1## (Each symbol in the formula has the following meaning: A: a group represented by a formula (CH.sub.2).sub.m or a group represented by a formula Ph--(CH.sub.2).sub.p (Ph: a phenyl group),X: an oxygen atom or a group represented by a formula NR.sup.4,R.sup.1 : a hydrogen atom, a hydroxyl group or a triazolyl group, with the proviso that X may be a bond when R.sup.1 is a triazolyl group,R.sup.2 : a hydrogen atom, a nitro group, a halogeno-lower alkyl group, a cyano group, an amino group, a mono- or di-lower alkylamino group or a halogen atom,R.sup.3 and R.sup.
    Type: Grant
    Filed: December 2, 1998
    Date of Patent: September 19, 2000
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Shuichi Sakamoto, Junya Ohmori, Jun-ichi Shishikura, Masamichi Okada, Masao Sasamata
  • Patent number: 6096743
    Abstract: A 1,2,3,4-tetrahydroquinoxalinedione derivative represented by the following formula (I) or salt thereof, an NMDA-glycine receptor and/or AMPA receptor antagonist or kainic acid neurotoxicity inhibitor containing the derivative or salt. In addition, a pharmaceutical composition comprising said compound and a pharmaceutically acceptable carrier: ##STR1## wherein the substituents are as described in the specification.
    Type: Grant
    Filed: March 5, 1997
    Date of Patent: August 1, 2000
    Assignee: Yamanouchi Pharmaceuticals Co., Ltd.
    Inventors: Jun-ichi Shishikura, Hiroshi Inami, Shuichi Sakamoto, Shin-ichi Tsukamoto, Masao Sasamata, Masamichi Okada, Mitsuo Fujii
  • Patent number: 6037375
    Abstract: The invention presents a nutrient composition comprising insulin secretion promoting amino acid and food material having antioxidation action as essential ingredients.The composition of the invention is useful for feeding at the time of physical exhaustion or fatigue due to exercise, suppression of formation of radicals by promotion of respiration during exercise, and supplementing vitamins.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: March 14, 2000
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Shuichi Sakamoto, Hiroshi Okamatsu, Koji Okamura, Akihisa Takaichi, Toshihiko Okamoto, Tetsuo Fukuda
  • Patent number: 5870225
    Abstract: A rear projection type display system with a transmissive screen. A transparent reinforcing plate is coupled to a lenticular sheet of the screen on the light output side by a connective member to broaden the horizontal diverging angle by 60 degrees or more to the right and left sides. The duty factor of a black stripe formed on the lenticular sheet is set to 60% or more so improve the contrast of an image. The diverging angle at each point of a vertically-diffusing lens for diverging light in the vertical direction is modulated in accordance with the height of each point to offer a proper visual angle range in the vertical direction.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: February 9, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Masanori Ogino, Yoshiaki Iwahara, Shoji Kuroda, Shuichi Sakamoto, Takashi Itoh, Makoto Kamiya