Patents by Inventor Yasuhiko Iwasaki

Yasuhiko Iwasaki 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: 20220138421
    Abstract: An information processing system includes a processor configured to: extract first characteristic values indicating frequencies of appearance of words in a target document to be processed among plural documents managed based on a hierarchical relationship; extract second characteristic values of the words that are correlated to reciprocals of ratios of the number of documents including the words to a total number of documents in a group of documents in a first group including the target document; and assign words selected from among the words based on the first characteristic values and the second characteristic values to the target document as first attributes.
    Type: Application
    Filed: May 6, 2021
    Publication date: May 5, 2022
    Applicant: FUJIFILM Business Innovation Corp.
    Inventor: Yasuhiko IWASAKI
  • Patent number: 10175859
    Abstract: An information processing apparatus includes a screen, a receiving unit that receives an operation performed on the screen, a display that displays a document having multiple pages on the screen on a page-by-page basis, a processing mode changing unit that, upon detecting a predetermined first operation on the document displayed on the screen, changes from a first processing mode that moves one page at a time to a second processing mode that moves multiple pages, and a moving unit that, upon detecting a predetermined second operation in the second processing mode, moves multiple pages within the document. As the predetermined first operation, the processing mode changing unit detects continued detection of a first position where a drag operation has ended, or detects, while the first position is detected, an operation performed at a second position different from the first position.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: January 8, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Yasuhiko Iwasaki
  • Publication number: 20150355796
    Abstract: An information processing apparatus includes a screen, a receiving unit that receives an operation performed on the screen, a display that displays a document having multiple pages on the screen on a page-by-page basis, a processing mode changing unit that, upon detecting a predetermined first operation on the document displayed on the screen, changes from a first processing mode that moves one page at a time to a second processing mode that moves multiple pages, and a moving unit that, upon detecting a predetermined second operation in the second processing mode, moves multiple pages within the document. As the predetermined first operation, the processing mode changing unit detects continued detection of a first position where a drag operation has ended, or detects, while the first position is detected, an operation performed at a second position different from the first position.
    Type: Application
    Filed: March 16, 2015
    Publication date: December 10, 2015
    Inventor: Yasuhiko IWASAKI
  • Patent number: 9034414
    Abstract: The object of the present invention is to provide a joint prosthesis, bearing material and a production method thereof, which suppresses wear in a sliding section and suppresses the production of abrasive powder even during repeated daily operation. To achieve the object, there is provided a biomaterial comprising: a substrate made of metal, alloy or ceramic; and a biocompatible material layer laminated on the substrate, wherein hydroxyl groups are formed on the substrate by surface-treating, while the biocompatible material layer comprises a polymer containing phosphorylcholine groups, the substrate and the biocompatible material layer are bound via a binder layer which is combined with the hydroxyl groups of the substrate and with the biocompatible material layer.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: May 19, 2015
    Assignees: KYOCERA MEDICAL CORPORATION, THE UNIVERSITY OF TOKYO, NATIONAL UNIVERSITY CORPORATION TOKYO MEDICAL AND DENTAL UNIVERSITY
    Inventors: Masayuki Kyomoto, Kazuhiko Ishihara, Yasuhiko Iwasaki, Toru Moro, Kozo Nakamura, Yoshio Takatori, Hiroshi Kawaguchi, Tomohiro Konno, Noboru Yamawaki
  • Publication number: 20140170331
    Abstract: The object of the present invention is to provide a joint prosthesis, bearing material and a production method thereof, which suppresses wear in a sliding section and suppresses the production of abrasive powder even during repeated daily operation. To achieve the object, there is provided a biomaterial comprising: a substrate made of metal, alloy or ceramic; and a biocompatible material layer laminated on the substrate, wherein hydroxyl groups are formed on the substrate by surface-treating, while the biocompatible material layer comprises a polymer containing phosphorylcholine groups, the substrate and the biocompatible material layer are bound via a binder layer which is combined with the hydroxyl groups of the substrate and with the biocompatible material layer.
    Type: Application
    Filed: February 21, 2014
    Publication date: June 19, 2014
    Applicants: KYOCERA Medical Corporation, NATIONAL UNIVERSITY CORPORATION TOKYO MEDICAL AND DENTAL UNIVERSITY, THE UNIVERSITY OF TOKYO
    Inventors: Masayuki KYOMOTO, Kazuhiko ISHIHARA, Yasuhiko IWASAKI, Toru MORO, Kozo NAKAMURA, Yoshio TAKATORI, Hiroshi KAWAGUCHI, Tomohiro KONNO, Noboru YAMAWAKI
  • Patent number: 8697238
    Abstract: The object of the present invention is to provide a joint prosthesis, bearing material and a production method thereof, which suppresses wear in a sliding section and suppresses the production of abrasive powder even during repeated daily operation. To achieve the object, there is provided a biomaterial comprising: a substrate made of metal, alloy or ceramic; and a biocompatible material layer laminated on the substrate, wherein hydroxyl groups are formed on the substrate by surface-treating, while the biocompatible material layer comprises a polymer containing phosphorylcholine groups, the substrate and the biocompatible material layer are bound via a binder layer which is combined with the hydroxyl groups of the substrate and with the biocompatible material layer.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: April 15, 2014
    Assignees: Kyocera Medical Corporation, The University of Tokyo, National University Corporation Tokyo Medical and Dental University
    Inventors: Masayuki Kyomoto, Kazuhiko Ishihara, Yasuhiko Iwasaki, Toru Moro, Kozo Nakamura, Yoshio Takatori, Hiroshi Kawaguchi, Tomohiro Konno, Noboru Yamawaki
  • Patent number: 8063238
    Abstract: Highly polymerizable diamine compounds having a phosphorylcholine group are disclosed. High-molecular weight polymers are obtained from the highly polymerizable diamine compound having a phosphorylcholine group as a monomer, and the polymers have improved mechanical strength, water resistance and heat resistance while maintaining excellent biocompatibility and processability of MPC polymers. Processes for producing the polymers are disclosed. The diamine compounds having a phosphorylcholine group are represented by Formula (I). The polymers contain at least 1 mol % of a specific structural unit with a phosphorylcholine group represented by Formula (II) and have a number average molecular weight of not less than 5,000. In the processes, the diamine compound is used as a monomer.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: November 22, 2011
    Assignees: Tokai University Educational System, Tokyo Medical and Dental University
    Inventors: Yu Nagase, Naoya Shimoyamada, Yasuhiko Iwasaki, Kazuhiko Ishihara
  • Publication number: 20100262237
    Abstract: The object of the present invention is to provide a joint prosthesis, bearing material and a production method thereof, which suppresses wear in a sliding section and suppresses the production of abrasive powder even during repeated daily operation. To achieve the object, there is provided a biomaterial comprising: a substrate made of metal, alloy or ceramic; and a biocompatible material layer laminated on the substrate, wherein hydroxyl groups are formed on the substrate by surface-treating, while the biocompatible material layer comprises a polymer containing phosphorylcholine groups, the substrate and the biocompatible material layer are bound via a binder layer which is combined with the hydroxyl groups of the substrate and with the biocompatible material layer.
    Type: Application
    Filed: March 26, 2007
    Publication date: October 14, 2010
    Applicants: JAPAN MEDICAL MATERIALS CORPORATION, THE UNIVERSITY OF TOKYO, NATIONAL UNIVERSITY CORPORATION TOKYO MEDICAL AND DENTAL UNIVERSITY
    Inventors: Masayuki Kyomoto, Kazuhiko Ishihara, Yasuhiko Iwasaki, Toru Moro, Kozo Nakamura, Yoshio Takatori, Hiroshi Kawaguchi, Tomohiro Konno, Noboru Yamawaki
  • Publication number: 20100036081
    Abstract: Highly polymerizable diamine compounds having a phosphorylcholine group are disclosed. High-molecular weight polymers are obtained from the highly polymerizable diamine compound having a phosphorylcholine group as a monomer, and the polymers have improved mechanical strength, water resistance and heat resistance while maintaining excellent biocompatibility and processability of MPC polymers. Processes for producing the polymers are disclosed. The diamine compounds having a phosphorylcholine group are represented by Formula (I). The polymers contain at least 1 mol % of a specific structural unit with a phosphorylcholine group represented by Formula (II) and have a number average molecular weight of not less than 5,000. In the processes, the diamine compound is used as a monomer.
    Type: Application
    Filed: August 31, 2007
    Publication date: February 11, 2010
    Applicants: TOKAI UNIVERSITY EDUCATIONAL SYSTEM, TOKYO MEDICAL AND DENTAL UNIVERSITY
    Inventors: Yu Nagase, Naoya Shimoyamada, Yasuhiko Iwasaki, Kazuhiko Ishihara
  • Patent number: 7378538
    Abstract: A compound of the invention is a specific compound having a phosphorylcholine group, and a polymer of the invention comprises at least 1 mol % of repeating units with a phosphorylcholine group and has a number-average molecular weight of 1,000 or more, the repeating units with a phosphorylcholine group being represented by the formula (II): wherein A is a bond selected from a single bond, —O—, —COO—, —OOC—, —CONH—, —NH—, —NHCO—, —NR2— and —CH2O— where R2 is an alkyl group having 1 to 6 carbon atoms; and m is an integer of 1 to 12.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: May 27, 2008
    Assignee: Tokai University
    Inventors: Yu Nagase, Masataka Oku, Kazuhiko Ishihara, Yasuhiko Iwasaki
  • Publication number: 20070253940
    Abstract: The present invention provides a platelet-rich plasma with high activities in an easy and economical manner. The platelet-rich plasma is obtained by aggregating and precipitating erythrocytes from collected whole blood selectively and facilitatively without employing centrifugation. For example, the plasma is obtained by the addition of a polymer having a residue of an organic phosphate compound. Specifically, the polymer having a residue of an organic phosphate compound can be added to whole blood and allowed to stand for a specific time, thereby to selectively and facilitatively aggregate and precipitate erythrocytes to give a supernatant. The supernatant contains much platelets which exist in their extremely intact state similar as in a living body and simultaneously provides a platelet-rich plasma with high activity comprising much plasma proteins such as fibrinogen and leukocytes.
    Type: Application
    Filed: January 28, 2005
    Publication date: November 1, 2007
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Emi Sumida, Shohei Kasugai, Kazunari Akiyoshi, Yasuhiko Iwasaki
  • Publication number: 20060041160
    Abstract: A compound of the invention is a specific compound having a phosphorylcholine group, and a polymer of the invention comprises at least 1 mol % of repeating units with a phosphorylcholine group and has a number-average molecular weight of 1,000 or more, the repeating units with a phosphorylcholine group being represented by the formula (II): wherein A is a bond selected from a single bond, —O—, —COO—, —OOC—, —CONH—, —NH—, —NHCO—, —NR2— and —CH2O— where R2 is an alkyl group having 1 to 6 carbon atoms; and m is an integer of 1 to 12.
    Type: Application
    Filed: February 18, 2004
    Publication date: February 23, 2006
    Applicant: Tokai University
    Inventors: Yu Nagase, Masataka Oku, Kazuhiko Ishihara, Yasuhiko Iwasaki
  • Publication number: 20050170327
    Abstract: An object of this invention is to provide platelet-rich plasma having high activity easily and at low cost. The object is achieved by a method for preparing platelet-rich plasma comprising a step of adding a water-soluble polymer compound to whole blood obtained by blood collection. For example, by adding poly-L-glutamic acid to whole blood and allowing the mixture to stand still for a definite period, it is possible to obtain platelet-rich plasma having high activity that contains blood plasma components containing much fibrinogen in addition to platelets in the supernatant and blood cell components including white blood cells. This invention also includes the platelet-rich plasma and the use thereof as well as a kit for preparing platelet-rich plasma.
    Type: Application
    Filed: August 1, 2003
    Publication date: August 4, 2005
    Inventors: Emi Sumida, Shohei Kasugai, Kazunari Akiyoshi, Yasuhiko Iwasaki
  • Patent number: 6727813
    Abstract: An alarm notifying device comprises a circuit which performs communications via a communication line, a circuit which detects a signal indicative of an operating condition of a facility to be monitored, and an alarm signal sent therefrom, and a CPU. The alarm notifying device notifies an alarm to the outside when the alarm signal is detected. The alarm notifying device has the function of receiving a mail, the function of analyzing the contents of a text of the received mail, and the function of changing information lying inside the device according to the contents of the text of the received mail.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: April 27, 2004
    Assignees: Hitachi, Ltd., Hitachi Techno Engineering Co., Ltd., Hitchi Keiyo Engineering & Systems, Ltd.
    Inventors: Yasuhiko Iwasaki, Ichiro Takahashi, Seigo Kurokawa, Kiyohiro Nakano, Manabu Fujimoto, Kouji Kakuta, Hiromitsu Kaneko
  • Patent number: 6700485
    Abstract: An alarm notifying device comprising apparatus for inputting an alarm signal of a facility to be monitored, apparatus for connecting to a mail server for delivering an electronic mail by way of a communication line, a memory for storing a guidance text corresponding to the contents of an alarm, and a CPU having the function of transmitting an electronic mail about the alarm. In the alarm notifying device, the CPU has the function of adding the contents of an alarm and a guidance text corresponding to the alarm contents to an electronic mail.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: March 2, 2004
    Assignees: Hitachi, Ltd., Hitachi Techno Engineering Co., Ltd., Hitachi Keiyo Engineering & Systems, Ltd.
    Inventors: Hiromitsu Kaneko, Koji Nonaka, Ichiro Takahashi, Seigo Kurokawa, Kiyohiro Nakano, Manabu Fujimoto, Yasuhiko Iwasaki, Kouji Kakuta
  • Publication number: 20020158759
    Abstract: The present invention provides an alarm notifying device comprising means for inputting an alarm signal of a facility to be monitored, means for connecting to a mail server for delivering an electronic mail by way of a communication line, a memory for storing a guidance text corresponding to the contents of an alarm, and a CPU having the function of transmitting an electronic mail about the alarm. In the alarm notifying device, the CPU has the function of adding the contents of an alarm and a guidance text corresponding to the alarm contents to an electronic mail.
    Type: Application
    Filed: August 31, 2001
    Publication date: October 31, 2002
    Inventors: Hiromitsu Kaneko, Koji Nonaka, Ichiro Takahashi, Seigo Kurokawa, Kiyohiro Nakano, Manabu Fujimoto, Yasuhiko Iwasaki, Kouji Kakuta
  • Publication number: 20020158758
    Abstract: An alarm notifying device comprises a circuit which performs communications via a communication line, a circuit which detects a signal indicative of an operating condition of a facility to be monitored, and an alarm signal sent therefrom, and a CPU. The alarm notifying device notifies an alarm to the outside when the alarm signal is detected. The alarm notifying device has the function of receiving a mail, the function of analyzing the contents of a text of the received mail, and the function of changing information lying inside the device according to the contents of the text of the received mail.
    Type: Application
    Filed: August 31, 2001
    Publication date: October 31, 2002
    Inventors: Yasuhiko Iwasaki, Ichiro Takahashi, Seigo Kurokawa, Kiyohiro Nakano, Manabu Fujimoto, Kouji Kakuta, Hiromitsu Kaneko