Patents by Inventor Ryuichi Sakai
Ryuichi Sakai 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).
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Publication number: 20230242598Abstract: A polypeptide that comprises the amino acid sequence of SEQ ID NO: 1 and has a function of delivering a substance into cells, a polypeptide that comprises the amino acid sequence of SEQ ID NO: 2 and has a function of degrading a nucleic acid molecule, a polypeptide that comprises the amino acid sequence of SEQ ID NO: 3 and has a function of degrading a nucleic acid molecule and a function of intranuclearly migrating the same, polynucleotides encoding the respective polypeptides, and transformed cells containing the respective polynucleotides.Type: ApplicationFiled: April 7, 2021Publication date: August 3, 2023Applicant: National University Corporation Hokkaido UniversityInventors: Ryuichi SAKAI, Koji NAKANO
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Patent number: 10347816Abstract: The present invention relates to a piezoelectric driving device 10 capable of moving the movable member 14 along the axis direction engaged in a movable manner to the axial direction with respect to the shaft 16. A pair of the external electrodes 26 and 27 respectively comprises the first external connection part 26a and the second external connection part 27a formed at the lower end face in Z axis direction by being insulated against each other. At the opposing face of the weight member 30 facing against the lower end face of the element 20, the first circuit pattern 36 and the second circuit pattern 37 are formed by being insulated against each other; and the first circuit pattern 36 and the second circuit pattern 37 are respectively connected to the first external connection part 26 and the second external connection part 27 by a metal bonding.Type: GrantFiled: January 31, 2017Date of Patent: July 9, 2019Assignee: TDK CORPORATIONInventors: Toshiki Maruyama, Takuto Horii, Ryuichi Sakai, Shunsuke Ueno, Atsushi Ezawa, Tatsuya Taki
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Publication number: 20170229636Abstract: The present invention relates to a piezoelectric driving device 10 capable of moving the movable member 14 along the axis direction engaged in a movable manner to the axial direction with respect to the shaft 16. A pair of the external electrodes 26 and 27 respectively comprises the first external connection part 26a and the second external connection part 27a formed at the lower end face in Z axis direction by being insulated against each other. At the opposing face of the weight member 30 facing against the lower end face of the element 20, the first circuit pattern 36 and the second circuit pattern 37 are formed by being insulated against each other; and the first circuit pattern 36 and the second circuit pattern 37 are respectively connected to the first external connection part 26 and the second external connection part 27 by a metal bonding.Type: ApplicationFiled: January 31, 2017Publication date: August 10, 2017Applicant: TDK CORPORATIONInventors: Toshiki MARUYAMA, Takuto HORII, Ryuichi SAKAI, Shunsuke UENO, Atsushi EZAWA, Tatsuya TAKI
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Patent number: 8895579Abstract: Disclosed are heterotricyclic compounds, pharmaceutical compositions, methods of treatment, and methods for selectively antagonizing a glutamate receptor. The pharmaceutical compositions may include and the methods may utilize heterotricyclic compounds that are glutamate analogues which have specificity for AMPA receptors. The pharmaceutical compositions may be utilized to treat or prevent neurological diseases or disorders.Type: GrantFiled: March 21, 2011Date of Patent: November 25, 2014Assignee: Northwestern UniversityInventors: Geoffrey T. Swanson, Martin B. Gill, Ryuichi Sakai, Masato Oikawa
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Patent number: 8253544Abstract: An apparatus and a method of remote control which can enable real time operation of a device in home from a terminal device at remote location through a network are provided. A first server communicates with a terminal device through the Internet and generates device control data for controlling the device. A second server communicates with the device in a predetermined manner to acquire and store a specific address of the device, generates transmission data for transmission of the received device control data from the first server to the device based on the specific address, and transmits the transmission data to the device. This allows real time control of the device from the terminal device through the network to be realized.Type: GrantFiled: March 5, 2004Date of Patent: August 28, 2012Assignee: Panasonic CorporationInventors: Koji Hirose, Ryuichi Sakai
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Publication number: 20120071423Abstract: Disclosed are heterotricyclic compounds, pharmaceutical compositions, methods of treatment, and methods for selectively antagonizing a glutamate receptor. The pharmaceutical compositions may include and the methods may utilize heterotricyclic compounds that are glutamate analogues which have specificity for AMPA receptors. The pharmaceutical compositions may be utilized to treat or prevent neurological diseases or disorders.Type: ApplicationFiled: March 21, 2011Publication date: March 22, 2012Applicant: NORTHWESTERN UNIVERSITYInventors: Geoffrey T. Swanson, Martin B. Gill, Ryuichi Sakai, Masato Oikawa
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Patent number: 7973075Abstract: Disclosed are compounds, pharmaceutical compositions, methods of treatment, and methods for selectively antagonizing a GluR5 receptor, a GluR6 receptor, or both receptors. The pharmaceutical compositions include and the methods utilize compounds that are analogs and stereoisomers of dysiherbaine and neodysiherbaine which have specificity for kainate receptors.Type: GrantFiled: October 1, 2008Date of Patent: July 5, 2011Assignee: Northwestern UniversityInventors: Geoffrey T. Swanson, Leanne Lash, Ryuichi Sakai
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Patent number: 7839299Abstract: A remote control system detects an operating status of various devices through the Internet in real time. A remote controller, which enables a terminal device to control an operation of a device through a network, acquires and stores a latest address of the device by communicating with the device at predetermined time intervals through the network. A status notification request referring to the stored address is transmitted through the network. In response, the remote controller receives status information from the device, stores the status information received from the device, and transmits the stored status information to the terminal device through the network.Type: GrantFiled: March 5, 2004Date of Patent: November 23, 2010Assignee: Panasonic CorporationInventors: Koji Hirose, Ryuichi Sakai
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Patent number: 7617009Abstract: A remote control system in which an instruction from a remote terminal is transmitted to a controlled device through a remote control device. Device unique data which is information specific to the controlled device is stored in the remote control device or the controlled device. The remote control device generates WEB display data to be displayed on the remote terminal based on a device type of the controlled device and the device unique data. Alternatively, the remote control device generates WEB display data based on the device unique data stored in the controlled device. Thus, even when a new type of controlled device is developed, or even when the function for the controlled device is extended, it does not need to modify programs for achieving functions of the remote control device. Accordingly, it facilitates a change of an operational screen of the terminal in response to those changes.Type: GrantFiled: March 26, 2004Date of Patent: November 10, 2009Assignee: Panasonic CorporationInventors: Koji Hirose, Ryuichi Sakai, Takashi Maniwa
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Publication number: 20090247533Abstract: The present invention is directed to several newly discovered ecteinascidin (Et) species, designated herein as Et 731, Et 815, Et 808, and Et 594. The physical properties of these compounds, their preparation and therapeutic properties are also reported.Type: ApplicationFiled: June 11, 2009Publication date: October 1, 2009Applicant: The Board of Trustees of the University of IllinoisInventors: Kenneth L. Rinehart, Ryuichi Sakai
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Publication number: 20080298582Abstract: A client's secret key is Ki=(s+Ii)?1P where Ii is obtained by using a collision-resistant hash function h to process client IDs with respect to the secret numbers s and r and the parameters P and Q of a secret on an elliptic curve E. The session key Ks that encrypts the message m is Ks=enc(P,Q)rk and the header is constituted by H1=k ?i=1?N(s+Ii)R=k?i=0?NcisiR, H2=k(rP), S={I1,I2, . . . , IN}. The client restores the session key by means of A/B=en(P,Q)rk?j=1?N,j?iIj, (A/B)?j=1?N,j?iIj?1=Ks from A=en(Ki,H1)=en((s+Ii)?1P,k?i=1?N(s+Ii)R) and B=en(H2,?j=1?N,j?i(s+Ij)Q??j=1?N,j?iIjQ)=en(P,Q)rk?j=1?N,j?i Ij.Type: ApplicationFiled: July 26, 2007Publication date: December 4, 2008Applicants: MURATA KIKAI KABUSHIKI KAISHA, RYUICHI SAKAIInventor: Ryuichi SAKAI
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Publication number: 20080234279Abstract: The present invention is directed to several newly discovered ecteinascidin (Et) species, designated herein as Et 731, Et 815, Et 808, and Et 594. The physical properties of these compounds, their preparation and therapeutic properties are also reported.Type: ApplicationFiled: October 30, 2007Publication date: September 25, 2008Inventors: Kenneth L. Rinehart, Ryuichi Sakai
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Patent number: 7239701Abstract: Mapping is carried out at a point on an elliptic curve to be utilized for elliptic encryption based on identity information (ID information) of each entity and a mapping value is set to be a public key of the entity. By using the mapping value and secret information, a secret key of each entity is generated. The entity generates a common key to be used for an encrypting process and a decrypting process by utilizing the self-secret key and the public key to be the mapping value obtained by mapping at a point on the elliptic curve based on ID information of a communication participate. In this case, pairing on the elliptic curve is utilized.Type: GrantFiled: November 7, 2000Date of Patent: July 3, 2007Assignees: Murata Machinery Ltd., Masao Kasahara, Ryuichi SakaiInventors: Kiyoshi Ogishi, Ryuichi Sakai, Masao Kasahara
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Publication number: 20060212913Abstract: In a remote control system to control remotely a controlled device through a network from a terminal at a remote place, the controlled device stores a channel table associating broadcast station numbers recognized by a remote control device and allocated to each broadcast station with channel numbers recognized by the controlled device and allocated to each broadcast station. This allows channel numbers to be designated remotely according to an area, even though a relation between broadcast station numbers and channel numbers is different depending on an area. The remote controller can read the channel table of the controlled device and correct the channel table according to user's operation on the terminal.Type: ApplicationFiled: March 26, 2004Publication date: September 21, 2006Inventors: Koji Hirose, Ryuichi Sakai, Takashi Maniwa
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Publication number: 20060192790Abstract: A remote control system in which an instruction from a remote terminal is transmitted to a controlled device through a remote control device. Device unique data which is information specific to the controlled device is stored in the remote control device or the controlled device. The remote control device generates WEB display data to be displayed on the remote terminal based on a device type of the controlled device and the device unique data. Alternatively, the remote control device generates WEB display data based on the device unique data stored in the controlled device. Thus, even when a new type of controlled device is developed, or even when the function for the controlled device is extended, it does not need to modify programs for achieving functions of the remote control device. Accordingly, it facilitates a change of an operational screen of the terminal in response to those changes.Type: ApplicationFiled: March 26, 2004Publication date: August 31, 2006Inventors: Koji Hirose, Ryuichi Sakai, Takashi Maniwa
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Publication number: 20060044106Abstract: A remote control system capable of detecting an operating status of devices through the Internet at real time is provided. A remote controller (20) which enables a terminal device to control an operation of the device (30a, . . . ) through a network (100), acquires a latest address of the device for the network by communicating with the device at predetermined time intervals through the network, stores the address, transmits a status notification request to the device through the network while referring to the stored address, receives status information from the device, stores the status information received from the device, and transmits the stored status information on the device to the terminal device (10) through the network.Type: ApplicationFiled: March 5, 2004Publication date: March 2, 2006Inventors: Koji Hirose, Ryuichi Sakai
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Publication number: 20060030571Abstract: The present invention is directed to several newly discovered ecteinascidin (Et) species, designated herein as Et 731, Et 745B, Et 815, Et 808, Et 596, Et 597, Et 583, Et 594 and a synthetic derivative of Et 594, N-Acetyl Et 597. The physical properties of these compounds, their preparation and bioactivities are also reported.Type: ApplicationFiled: May 18, 2005Publication date: February 9, 2006Inventors: Kenneth Rinehart, Ryuichi Sakai
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Publication number: 20050285714Abstract: An apparatus and a method of remote control which can enable real time operation of a device in home from a terminal device at remote location through a network are provided. A first server (20) communicates with a terminal device (10) through Internet (100) and generates device control data for controlling the device (50a , . . . ). A second server (30) communicates with the device (50a , . . . ) in a predetermined manner to acquire and store a specific address of the device, generates transmission data which is for transmission of the received device control data from the first server (20) to the device (50a , . . . ) based on the specific address, and transmits the transmission data to the device (50a , . . . ). This allows real time control of the device from the terminal device (10) through the network to be realized.Type: ApplicationFiled: March 5, 2004Publication date: December 29, 2005Inventors: Koji Hirose, Ryuichi Sakai
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Patent number: 6915064Abstract: A video recording and reproducing apparatus is provided which is capable of, even if the number of elementary streams (ES) of bits of a program to be recorded is too large and all the elementary streams can hardly be recorded, carrying out a recording operation with ease substantially corresponding to the direction of the user. The apparatus allows an ES selector to identify the elementary streams of video data, audio data, and their relevant data video in the stream of bits received from its program selector and, when the number of the elementary streams is higher than a given setting, pick up elementary streams which satisfy the predetermined requirements while deleting the other elementary streams. The elementary streams are then recorded by a recorder/player in the apparatus. Even if the elementary streams of bits are not all recorded, the elementary streams which satisfy the predetermined requirements can readily be recorded.Type: GrantFiled: August 30, 2000Date of Patent: July 5, 2005Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Ryuichi Sakai
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Publication number: 20040059112Abstract: The present invention is directed to several newly discovered ecteinascidin (Et) species, designated herein as Et 731, Et 745B, Et 815, Et 808, Et 596, Et 597, Et 583, Et 594 and a synthetic derivative of Et 594, N-Acetyl Et 597. The physical properties of these compounds, their preparation and bioactivities are also reported.Type: ApplicationFiled: April 2, 2003Publication date: March 25, 2004Inventors: Kenneth L. Rinehart, Ryuichi Sakai