Patents by Inventor Dai Watanabe

Dai Watanabe 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: 11978898
    Abstract: A positive electrode for nonaqueous electrolyte battery includes specific peaks in pyrolysis GC/MS measurement, and includes specific pore diameters and pore volumes in a pore distribution curve attained by a mercury intrusion method.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: May 7, 2024
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tetsuro Kano, Dai Yamamoto, Yuki Watanabe
  • Patent number: 11967720
    Abstract: An electrode according to an embodiment contains an electrode mixture layer containing an active material and a conductive assistant. In a logarithmic differential pore volume distribution by a mercury intrusion method, the electrode mixture layer satisfies: a ratio P1/P2 within a range of 2 or more and less than 8, and a ratio S1/S2 within a range of 3 or more and less than 10. P1 is a value of a maximum logarithmic differential pore volume in a pore diameter range of 0.1 ?m or more and 1 ?m or less. P2 is a value of a logarithmic differential pore volume of a pore diameter of 0.03 ?m. S1 is an integrated value in a pore diameter range of 0.1 ?m or more and 1 ?m or less. S2 is an integrated value in a pore diameter range of more than 0 ?m and less than 0.1 ?m.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: April 23, 2024
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yuki Watanabe, Dai Yamamoto, Toshitada Nakazawa, Tetsuro Kano, Masanori Tanaka
  • Publication number: 20240094481
    Abstract: An optical apparatus includes a light emitting apparatus and a host apparatus. The light emitting apparatus includes a housing extending in a first direction, a light emitting device mounted in the housing, an optical connector including a first optical connection part provided at one end of the housing, and an electrical connector including a first electrical connection part provided at one end of the housing and receiving a voltage to drive the light emitting device. The host apparatus includes a host optical connector including a second optical connection part which faces the first optical connection part and is optically coupled thereto, a host electrical connector including a second electrical connection part facing the first electrical connection part and being electrically connected to the first electrical connection part, and a host board mounting the host optical connector and the host electrical connector thereon.
    Type: Application
    Filed: March 5, 2021
    Publication date: March 21, 2024
    Applicants: Sumitomo Electric Industries, Ltd., Sumitomo Electric Device Innovations, Inc.
    Inventors: Kuniyuki ISHII, Hiromi KURASHIMA, Hideaki KAMISUGI, Tomomi SANO, Tetsuya NAKANISHI, Hong NGUYEN, Hajime ARAO, Dai SASAKI, Takuro WATANABE
  • Patent number: 11917393
    Abstract: A sound field support method for an audio reproducing apparatus for simulating sound emitting from a sound source, the method includes selecting either position information on the sound source to be set in a virtual space or localization information of the sound source, in a case where sound from the sound source is to be simulated sound emitted from a speaker to be set in a target space, generating a first sound signal based on the position information in a state where the selecting has selected the position information, generating a second sound signal based on the localization information in a state where the selecting has selected the localization information, and adjusting sound image localization of an input audio signal from the sound source to be output to the speaker using the first sound signal and the second sound signal.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: February 27, 2024
    Assignee: YAMAHA CORPORATION
    Inventors: Takayuki Watanabe, Dai Hashimoto, Hiroomi Shidoji
  • Publication number: 20220372275
    Abstract: The present invention relates to a polybutylene terephthalate composition, comprising as component (A) polybutylene terephthalate (PBT) resin, as component (B) polyester copolymer with melting point from 105° C. to 185° C., as component (C) vinyl-based polymer, and optionally as component (D) glass bubbles. The present invention also relates to a composite of plastic/metal hybrid, which comprises metal article and the polybutylene terephthalate composition of the present invention which is joined to and integrated with the metal article.
    Type: Application
    Filed: October 13, 2020
    Publication date: November 24, 2022
    Inventors: Zhen Ke Wei, Qiong Jie Han, Chao Liu, Roland Helmut Kraemer, Dai Watanabe, Zhenguo Liu
  • Publication number: 20220025097
    Abstract: A thermoplastic polyurethane having a glass transition temperature of the soft phase of not more than ?25° C. measured using DMA and a heating rate of 2K/min at 1 Hz under torsion based on DIN EN ISO 6721: 2016; maximum G? can be obtained by a process at least including the reaction of a polyol composition including a polypropylene glycol, wherein the proportion of the secondary terminal OH groups based on the total number of terminal OH groups of the polypropylene glycol is in the range of more than 90%, with a polyisocyanate to obtain a polyol composition including a prepolymer and the reaction of the polyol composition including the prepolymer with a polyisocyanate composition including at least one polyisocyanate and at least one chain extender having a molecular weight <500 g/mol. The thermoplastic polyurethane may be used for producing injection molded products, extruded products, films, profiles and shaped articles.
    Type: Application
    Filed: November 29, 2019
    Publication date: January 27, 2022
    Applicant: BASF SE
    Inventors: Frank Schaefer, Michael Freese, Elmar Poeselt, Etsuhiro Yamamoto, Yasuyuki Suzuki, Dai Watanabe, Patrick Drawe
  • Patent number: 11104795
    Abstract: A composition comprises polyalkylene terephthalate and terpolymer of alkylene diol, isophthalic acid and terephthalic acid, and polyalkylene terephthalate reinforcing fiber. The composition may be used to form an article, alone or with other thermoplastic material, at lower processing temperature, with higher melt flowability. The article formed is characterized with lower warpage and improved mechanical properties. The article may be useful for automotive, electrical, household, construction, and industrial applications. A method of preparing such thermoplastic polyester is also disclosed.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: August 31, 2021
    Assignee: BASF SE
    Inventors: Zhenguo Liu, Dai Watanabe, Hui Wang, Simon Kniesel
  • Publication number: 20210089346
    Abstract: A main storage device stores an OS that allocates a resource for each program, an entropy source collection and delivery program that collects and delivers an entropy source, and a data protection program that performs protection processing of data by using the entropy source delivered by the entropy source collection and delivery program.
    Type: Application
    Filed: September 8, 2020
    Publication date: March 25, 2021
    Inventors: Manami SUZUKI, Dai WATANABE, Kenta TAKAHASHI
  • Publication number: 20190260715
    Abstract: A computer system includes a plurality of processing nodes constituting a blockchain network and a connection apparatus connecting to the blockchain network. The processing node holds information. The connection apparatus includes a connection processing unit that transmits a transaction to the processing node. The connection processing unit includes an encryption processing unit that generates searchable ciphertext from a keyword based on a probabilistic encryption method. The encryption processing unit generates, from the keyword, the searchable ciphertext to be used as an address indicating a transmission source or a transmission destination of the transaction, and generates the transaction including the searchable ciphertext.
    Type: Application
    Filed: February 15, 2019
    Publication date: August 22, 2019
    Inventors: Takayuki SUZUKI, Toshirou YAMAYOSHI, Hisayoshi SATO, Masayuki YOSHINO, Ken NAGANUMA, Dai WATANABE
  • Publication number: 20160060452
    Abstract: A composition comprises polyalkylene terephthalate and terpolymer of alkylene diol, isophthalic acid and terephthalic acid, and polyalkylene terephthalate reinforcing fiber. The composition may be used to form an article, alone or with other thermoplastic material, at lower processing temperature, with higher melt flowability. The article formed is characterized with lower warpage and improved mechanical properties. The article may be useful for automotive, electrical, household, construction, and industrial applications. A method of preparing such thermoplastic polyester is also disclosed.
    Type: Application
    Filed: March 26, 2014
    Publication date: March 3, 2016
    Inventors: Zhenguo Liu, Dai Watanabe, Hui Wang, Simon Kniesel
  • Patent number: 8548654
    Abstract: A message that contains train on-track information and reservation information of a train detection section and direction information and reservation information of a switch is circulated among a train detector, switch machine, signal device controller and a route indicating device. Via a signaling message, the train detector transmits the train detection result to the signal device controller and the route indicating device, the switch machine can transmit switch condition to the signal device controller, the route indicating device transmits route reservation to the switch machine and the signal device controller. Based on the transmitted train detection result, switch condition and route reservation condition, the signal device controller transmits travel permission or travel non-permission for the assigned route to a train.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: October 1, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Keiichi Katsuta, Dai Watanabe, Yoichi Sugita
  • Patent number: 8526615
    Abstract: A storage system includes a channel interface (IF) unit having an interface with a server, a disk IF unit having an interface with a hard disk group, a memory unit for storing data to be read/written from/to the server or the hard disk group, a switching unit, and the hard disk group. The channel IF unit, the disk IF unit, and the memory unit are connected to each other through the switching unit, and an encryption and decryption processing unit is provided between a host IF unit and a transfer controller in the channel IF unit.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: September 3, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Kazuhisa Fujimoto, Makio Mizuno, Dai Watanabe
  • Patent number: 8122075
    Abstract: A pseudorandom number generator reduced in size while maintaining high security is disclosed. The generator has a state storage unit of 2 blocks (n bits per block) and a buffer of plurality of blocks, and mixes their contents to obtain a random number sequence. The mixing is done by a nonlinear transformation unit for inputting the stored content of the buffer to output data of the same size as the input data, a first linear transformation unit for inputting the content of the state storage unit and the output of the nonlinear transformation unit to store an output into the state storage unit, and a second linear transformation unit for inputting the stored content of the buffer and the stored content of the state storage unit to store an output into the buffer. The mixed content of the state storage unit is output as a random number sequence.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: February 21, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Dai Watanabe, Hirotaka Yoshida
  • Patent number: 8108682
    Abstract: To achieve high safety, large-sized nonlinear permutation is employed; however, the larger permutation processing is, the more the period of time required for the processing is, which hence is not efficient. There is provided a hash value generation method or a hash value generator which has the following aspects and which is highly safe and is capable of executing processing at a high speed. 1. As a message insertion method, there is employed a linear conversion in which the insertion message affects all subblocks. 2. An internal state is divided into a plurality of subblocks, and nonlinear permutation is conducted in each subblock unit. 3. Additionally, the linear conversion of item 1 above may be configured such that each subblock of the internal state affects the subblocks of the output.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: January 31, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Dai Watanabe, Hisayoshi Sato
  • Publication number: 20110200191
    Abstract: A storage system includes a channel interface (IF) unit having an interface with a server, a disk IF unit having an interface with a hard disk group, a memory unit for storing data to be read/written from/to the server or the hard disk group, a switching unit, and the hard disk group. The channel IF unit, the disk IF unit, and the memory unit are connected to each other through the switching unit, and an encryption and decryption processing unit is provided between a host IF unit and a transfer controller in the channel IF unit.
    Type: Application
    Filed: March 7, 2011
    Publication date: August 18, 2011
    Inventors: Kazuhisa FUJIMOTO, Makio MIZUNO, Dai WATANABE
  • Patent number: 7903816
    Abstract: A storage system 1 includes a channel interface (IF) unit 11 having an interface with a server 3, a disk IF unit 16 having an interface with a hard disk group 2, a memory unit 21 for storing data to be read/written from/to the server 3 or the hard disk group 2, a switching unit 51, and the hard disk group 2. The channel IF unit 11, the disk IF unit 16, and the memory unit 21 are connected to each other through the switching unit 51, and an encryption and decryption processing unit 201 is provided between a host IF unit 101 and a transfer controller 103 in the channel IF unit 11.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: March 8, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Kazuhisa Fujimoto, Makio Mizuno, Dai Watanabe
  • Patent number: 7756613
    Abstract: Trains and points are patrolled by a telegram containing the block occupancy information as a section that only one train is permitted to occupy, the information for giving lock position instructions to a point, and the point position information. This telegram is updated in order to get the right of block occupancy that is not held by other trains, and to give lock position instruction to the point. The train checks the block which this train is allowed to occupy, confirms that the point in this block has been set to the lock position specified by this train. Reading the aforementioned telegram, the point checks the lock position instruction given to itself and controls its lock position. A signaling system characterized by reduced designing and manufacturing costs is provided.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: July 13, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Keiichi Katsuta, Yoichi Sugita, Dai Watanabe, Takashi Yamaguchi
  • Publication number: 20100049986
    Abstract: To achieve high safety, large-sized nonlinear permutation is employed; however, the larger permutation processing is, the more the period of time required for the processing is, which hence is not efficient. There is provided a hash value generation method or a hash value generator which has the following aspects and which is highly safe and is capable of executing processing at a high speed. 1. As a message insertion method, there is employed a linear conversion in which the insertion message affects all subblocks. 2. An internal state is divided into a plurality of subblocks, and nonlinear permutation is conducted in each subblock unit. 3. Additionally, the linear conversion of item 1 above may be configured such that each subblock of the internal state affects the subblocks of the output.
    Type: Application
    Filed: February 9, 2009
    Publication date: February 25, 2010
    Inventors: Dai WATANABE, Hisayoshi SATO
  • Patent number: 7553365
    Abstract: An aqueous pigment dispersion is produced by ultrafinely dispersing a pigment dispersion mixture, which has been obtained by mixing at least a pigment and a dispersant in an aqueous medium, with microbeads having diameters of not smaller than 0.02 mm but smaller than 0.2 mm. A color composition for a color filter is produced by dispersing a mixture of a pigment, a dispersant, a resin varnish and a solvent with the microbeads in a mill.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: June 30, 2009
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Shigeru Sakamoto, Yoshimasa Tsuchiya, Masanori Takakamo, Tohru Hosoda, Akio Yoshida, Michiei Nakamura, Naoyuki Sakai, Dai Watanabe, Hideyuki Koiso, Kenji Ogawa
  • Publication number: 20090010432
    Abstract: A storage system 1 includes a channel interface (IF) unit 11 having an interface with a server 3, a disk IF unit 16 having an interface with a hard disk group 2, a memory unit 21 for storing data to be read/written from/to the server 3 or the hard disk group 2, a switching unit 51, and the hard disk group 2. The channel IF unit 11, the disk IF unit 16, and the memory unit 21 are connected to each other through the switching unit 51, and an encryption and decryption processing unit 201 is provided between a host IF unit 101 and a transfer controller 103 in the channel IF unit 11.
    Type: Application
    Filed: April 21, 2008
    Publication date: January 8, 2009
    Inventors: Kazuhisa Fujimoto, Makio Mizuno, Dai Watanabe