Patents by Inventor Kanji Kato

Kanji 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: 7172344
    Abstract: Precise V-grooves allowing an optical fiber to project are formed in respective main surfaces of an upper plane substrate and a lower plane substrate. The optical fiber is mounted on one plane substrate, and a multi-layer film filter 2 is inserted into a filter insertion groove 1 crossing the precise V-groove in the main surface of the other plane substrate. Then, using the projecting optical fiber and the other precise V-groove as a guide rail, two plane substrates grapple the multi-layer film filter to fix and mount the filter. In an optical filter module obtained in this manner, a process of adjusting an optical axis between input/output optical fibers is eliminated, and displacement of the inserted optical filter is reduced.
    Type: Grant
    Filed: October 2, 2002
    Date of Patent: February 6, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazunari Nishihara, Kazuo Fujiwara, Kanji Kato, Mikio Degawa, Tetsuro Shimamura
  • Publication number: 20040027705
    Abstract: Precise V-grooves allowing an optical fiber to project are formed in respective main surfaces of an upper plane substrate and a lower plane substrate. The optical fiber is mounted on one plane substrate, and a multi-layer film filter 2 is inserted into a filter insertion groove 1 crossing the precise V-groove in the main surface of the other plane substrate. Then, using the projecting optical fiber and the other precise V-groove as a guide rail, two plane substrates grapple the multi-layer film filter to fix and mount the filter. In an optical filter module obtained in this manner, a process of adjusting an optical axis between input/output optical fibers is eliminated, and displacement of the inserted optical filter is reduced.
    Type: Application
    Filed: August 14, 2003
    Publication date: February 12, 2004
    Inventors: Kazunari Nishihara, Kazuo Fujiwara, Kanji Kato, Mikio Degawa, Tetsuro Shimamura
  • Patent number: 6164357
    Abstract: It is an object to provide an apparatus for manufacturing adhesive layers which can be manufactured in a manufacturing process which is fine, which exhibits an excellent mounting efficiency, which does not require a plating process and which is clean, double-sided substrates and multilayer substrates. A bonding-layer forming portion (5) incorporates a bonding portion (1), a hole machining portion (2), a charging portion (3) and a separating portion (4). A double-sided-substrate forming portion incorporates a bonding portion (6), a hole machining portion (7), a charging portion (8) and a separating portion (9), further incorporating a laminating portion (10), a resin hardening portion (11) and a pattern forming portion (12).
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: December 26, 2000
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Akio Ochi, Kanji Kato, Toshio Tanizaki, Akira Wada, Hidenori Hayashi
  • Patent number: 6094647
    Abstract: A method for making document information searches. In performing a document search with respect to the desired key word, two stages of presearch are carried out. In a first stage of presearch, a character component table in which an existence of character codes for every document is stated with respect to all the character codes contained in the group of document text data of stored documents is generated, and the character component table is searched for all the character strings constituting a desiredly designated search subject key word to thereby extract all the documents each containing all the character codes constituting the search subject key word. In a second stage of presearch, contracted text data for every document in which adjuncts and duplication of repeatedly stated words contained in advance in the text data are eliminated is generated, and the documents each containing the search subject key words by word are extracted from the documents extracted by the first presearch.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: July 25, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Kanji Kato, Hiromichi Fujisawa, Mitsuo Ooyama, Hisamitsu Kawaguchi, Atsushi Hatakeyama, Noriyuki Kaneoka, Mitsuru Akizawa, Masaaki Fujinawa, Hidefumi Masuzaki, Masaharu Murakami
  • Patent number: 5851441
    Abstract: Supply water temperature in a cooling tower is detected by a temperature detector, and based on the temperature detected by the temperature detector, a flow control valve in a hydraulic pressure supply line is controlled. As a result, operation of a hydraulic motor connected to a cooling fan can be controlled to efficiently cool down the water temperature to reach a preset temperature. Further, by a pressure-compensated variable displacement regulator of a variable displacement pump, the flow control valve is controlled to have irreducibly minimum pressure difference such that pressure on upstream side is slightly higher than the pressure on downstream side. Therefore, discharge pressure of the variable displacement pump can be suppressed to the irreducibly minimum value, and capacity of the variable displacement pump can be controlled to match the opening degree of the flow control valve.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: December 22, 1998
    Assignee: Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventors: Kanji Kato, Hiroshi Watanabe
  • Patent number: 5832476
    Abstract: A document searching system searches for other documents having a user-specified document cited therein as its referred document to thereby uncover the latest document associated with the user-specified document. In related document searching method, document information is registered in a text storage region, a referred document table and a related document table are created, and referred documents associated with the user-specified document are searched for with use of the created tables.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: November 3, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Katsumi Tada, Kanji Kato, Satoshi Asakawa, Akio Azuma
  • Patent number: 5757983
    Abstract: A document retrieval method and system for retrieving, from a document database storing document data in the form of character codes, a document which contains given search terms and which meets a given search query condition. From documents loaded from the document database, a document containing terms which match the search terms is searched to generate document identification (ID) information including a document identifier of the searched document and containing match terms found to match with the search terms as well as term identifiers of the match terms and position information of the match terms in the searched document. A decision is then made as to whether or not the position information of the match terms satisfies a positional condition specified in the search query condition concerning a positional relation between the search terms, and match information is then generated indicating satisfaction of the search query condition when the positional condition is satisfied.
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: May 26, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Hisamitsu Kawaguchi, Mitsuru Akizawa, Kanji Kato, Atsushi Hatakeyama, Hiromichi Fujisawa
  • Patent number: 5748953
    Abstract: A neighboring plural-character occurrence bitmap of a practical capacity capable of eliminating noises by hashing is realized, and a high speed full text search is realized equivalently, by greatly reducing the number of documents to be searched even if a search term constituted by a combination of English characters and words is used. Text data is segmented into words, and n-character strings at every (m+l)-th character positions are extracted from each word. A neighboring plural-character occurrence bitmap is created which stores data representing a presence of each neighboring plural-character string at a certain entry thereof. N-character strings at every (m+l)-th character positions are extracted from a search term and the neighboring plural-character occurrence bitmap is searched by using a search control program.
    Type: Grant
    Filed: May 18, 1995
    Date of Patent: May 5, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Natsuko Mizutani, Atsushi Hatakeyama, Hisamitsu Kawaguchi, Katsumi Tada, Kanji Kato, Satoshi Asakawa
  • Patent number: 5745745
    Abstract: A text search method for structured documents and apparatus wherein structured document database to be searched is created by adding logical structure length information to logical structure discriminating information on the basis of a structured document constituted by a plurality of logical structures and logical structure discriminator information, and in searching the structured document database in accordance with an entered search key constituted by a logical structure and a search character string, the search of a logical structure other than the entered logical structure is skipped based upon the data length information.
    Type: Grant
    Filed: June 27, 1995
    Date of Patent: April 28, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Katsumi Tada, Atsushi Hatakeyama, Hisamitsu Kawaguchi, Natsuko Mizutani, Kanji Kato, Satoshi Asakawa
  • Patent number: 5603003
    Abstract: In a computer system having an interface with an I/O bus given disconnect/reconnect functions and a plurality of magnetic disk subsystems connected with the I/O bus, control divides a file at a disk access time with reference to disk management information, file management information and file descriptor translation information to read/write a plurality of such files asynchronously. Thus, high speed file access can be realized by only the plurality of magnetic disk subsystems without requiring any special control hardware. A corresponding relation between subfiles in a virtual directory and the application request file can be taken to construct the directory, thus making the divided storage transparent to the application.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: February 11, 1997
    Assignees: Hitachi, Ltd., Hitachi Computer Engineering Co., Ltd.
    Inventors: Mitsuru Akizawa, Kanji Kato, Hiroyoshi Suzuki, Toshiyuki Maki, Hirofumi Yamashita, Akira Kito, Hidenori Yamada
  • Patent number: 5548724
    Abstract: A typical structure of a file server system is a file server system having a plurality of file servers connected in parallel on a network and sharing files placed distributedly in the file servers among a plurality of client computers, and there are provided in a specific file server among the plurality of file servers, a load information monitoring device for measuring respective loads of the plurality of file servers and a file access request distributing device for referring to the loads measured by the load information monitoring device so as to select a file server having a light load from the plurality of file servers having light loads, and distributing a file access request transmitted from client computers to the selected file server.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: August 20, 1996
    Assignees: Hitachi, Ltd., Hitachi Computer Engineering Co., Ltd.
    Inventors: Mitsuru Akizawa, Hirofumi Yamashita, Hisamitsu Kawaguchi, Katsumi Tada, Kanji Kato, Akira Kito, Hidenori Yamada
  • Patent number: 5519857
    Abstract: A method and apparatus for performing a document information search to uncover specified text data containing a given search subject key word from a group of document text data stored in a memory. In the document information search method, two stages of presearch are carried out to perform the document search with respect to a desired subject key word. In a first stage of presearch, a character component table is generated in which the existence of character codes for every document is set forth with respect to all the character codes contained in the group of document text data of stored documents. The character component table is searched for all the character codes comprising a designated search subject key word to thereby extract all documents containing all the character codes comprising the search subject key word. Further, in the presearch step, all texts without the possibility of containing the search subject key word are eliminated.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: May 21, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Kanji Kato, Hiromichi Fujisawa, Mitsuo Ooyama, Hisamitsu Kawaguchi, Atsushi Hatakeyama, Noriyuki Kaneoka, Mitsuru Akizawa, Masaaki Fujinawa, Hidefumi Masuzaki, Masaharu Murakami
  • Patent number: 5505883
    Abstract: Water to be cooled is sprayed through water spray ports at a bottom of an upper water vessel into a filler unit having a plurality of heat exchange surface members extending in parallel with each other to define flow passages between them and concurrently ambient air is sucked transversely into the flow passages. Thus, the water flowing down over the heat exchange surface members is cooled by the ambient air in a cross flow manner. In such cooling of water, some of the flow passages are sectioned so as to supply the water in the upper water vessel to some of flow passages so that in a normal condition with no fear of white smoke being generated, the water is sprayed over all of the heat exchange surface members and direct cooling is effected in every flow passage by the ambient air.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 9, 1996
    Assignee: Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventor: Kanji Kato
  • Patent number: 5505882
    Abstract: Water to be cooled is sprayed through water spray ports at a bottom of an upper water vessel into a filler unit having a plurality of heat exchange surface members extending in parallel with each other to define flow passages between them and concurrently ambient air is sucked transversely into the flow passages. Thus, the water flowing down over the heat exchange surface members is cooled by the ambient air in a cross flow manner. In such cooling of water, some of the flow passages are sectioned so as to supply the water in the upper water vessel to some of flow passages so that in a normal condition with no fear of white smoke being generated, the water is sprayed over all of the heat exchange surface members and direct cooling is effected in every flow passage by the ambient air.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 9, 1996
    Assignee: Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventor: Kanji Kato
  • Patent number: 5503493
    Abstract: Synthetic resin structural members are inserted into a hollow joint member to abut each other in the joint member. A bearing-pressure damping member is fitted into each of bolt holes on the members, axes of bolts extend alternately in two mutually perpendicular directions. The structural members and the hollow joint member are secured with bolts and nuts. Due to damping action resulting from elastic deformations of the damping members, a load is substantially evenly distributed over the whole bolts to prevent concentration of the load to some of the bolts. The arrangement of the bolts with their axes extending alternately in two mutually perpendicular directions will shorten the length of the joint member.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: April 2, 1996
    Assignees: Ishikawajima-Harima Jukogyo Kabushiki Kaisha, Kabushiki Naisha Nippon Shokubai
    Inventors: Kanji Kato, Kesaaki Mochizuki, Kozo Ando, Hiroshi Oya, Akira Hamamoto, Mitsuo Kobayashi, Katsuhiko Sakamoto, Kenichi Fujita, Hideto Yabumoto
  • Patent number: 5497488
    Abstract: A character string search arithmetic operation is performed at high speed with a small hardware scale processing module, such as a symbol string search module. The search module is connected to a CPU through address and data buses and includes a function definition section for defining a function of the apparatus in accordance with a command from the CPU, a data input/output section for receiving a symbol string to be searched through the data bus and for outputting the result of a search. A search processing section performs the search based on a function defined by the function definition section. A symbol string to be searched for, which is internally stored, is compared with the symbol string data input to the module's data input/output means. A condition holding section holds data indicative of an internal condition corresponding to the result of the search processing. Thereby, the CPU and the symbol string search module can perform the search at high speed.
    Type: Grant
    Filed: March 13, 1995
    Date of Patent: March 5, 1996
    Assignees: Hitachi, Ltd., Hitachi Maxell, Ltd.
    Inventors: Mitsuru Akizawa, Kouki Noguchi, Takehisa Hayashi, Kanji Kato, Hitoshi Matsushima
  • Patent number: 5471610
    Abstract: Character string retrieval method and system for deciding en bloc whether or not a plurality of search terms as designated exist in a text composed of characters expressed in the form of character codes is characterized by inclusion of a character string storage unit for storing a text, a filtering unit for fetching character codes from a text read out from the character string storage unit to thereby output only those character codes that are included in the search term, and a character string matching unit for matching en bloc to decide whether or not the aforementioned search term exists in the string of character codes outputted from the filtering unit.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: November 28, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Hisamitsu Kawaguchi, Katsumi Tada, Kanji Kato, Masatsugu Shinozaki
  • Patent number: 5469354
    Abstract: High-speed full document retrieval method and system capable of providing result of retrieval within practically acceptable short search time. Upon registration of documents in a document database, condensed texts are created by decomposing each of textual character strings of the documents to be registered into fragmental character strings in dependence on character species and by checking mutual inclusion relations existing among the fragmental character strings. A component character table is created in which characters occurring in each of the condensed texts are registered without duplication. The condensed texts and the component character table are registered in the data base together with the texts of the documents to be registered.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: November 21, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Atsushi Hatakeyama, Hiromichi Fujisawa, Kanji Kato, Hisamitsu Kawaguchi, Naoki Minegishi, Katsumi Tada, Satoshi Asakawa
  • Patent number: 5468426
    Abstract: Water to be cooled is sprayed through water spray ports at a bottom of an upper water vessel into a filler unit having a plurality of heat exchange surface members extending in parallel with each other to define flow passages between them and concurrently ambient air is sucked transversely into the flow passages. Thus, the water flowing down over the heat exchange surface members is cooled by the ambient air in a cross flow manner. In such cooling of water, some of the flow passages are sectioned so as to supply the water in the upper water vessel to some of flow passages so that in a normal condition with no fear of white smoke being generated, the water is sprayed over all of the heat exchange surface members and direct cooling is effected in every flow passage by the ambient air.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: November 21, 1995
    Assignee: Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventor: Kanji Kato
  • Patent number: 5454105
    Abstract: A document search method and system for searching and retrieving a document containing a specific character string in response to search requests issued by a plurality of search request sources. When a search request is received in the course of execution of a search processing for an earlier prior search request, the former is stored in a queue buffer. When a plurality of search requests have been stored in a queue buffer in this manner, a search processing is performed for the plurality of search requests simultaneously as stored. The results of search processing as performed are then distributively outputted to the relevant search request sources, respectively. Output buffers for storing a set of search results of the search processings performed in the past may be provided in correspondence to the search request sources, respectively, for screening the documents for which the character string search is to be performed.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: September 26, 1995
    Assignee: Hitachi, Ltd.
    Inventors: Atsushi Hatakeyama, Kanji Kato, Satoshi Asakawa, Hisamitsu Kawaguchi