Patents by Inventor Toshiyuki Ishiguro

Toshiyuki Ishiguro 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: 10129028
    Abstract: A method of equality verification using relational encryption including receiving a relational key that includes a first relational key component and a registration ciphertext that includes an encryption of a first plaintext data set. The method includes storing the registration ciphertext without decrypting the registration ciphertext. After the storing of the registration ciphertext, the method includes receiving an authentication request and communicating a safeguard data set that includes a random challenge in response to the authentication request. The method includes receiving an encrypted response that is generated based on the safeguard data set and a second plaintext data set. The method includes verifying a relationship between the encrypted response and the registration ciphertext using the relational key without decrypting the encrypted response and without decrypting the registration ciphertext. The relationship indicates that equality exists between the first and the second plaintext data sets.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: November 13, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Ryota Kamakari, Takeshi Shimoyama, Hiroshi Tsuda, Yoshinori Yaginuma, Avradip Mandal, Arnab Roy, Hart Montgomery, Toshiyuki Ishiguro, Kouhei Shigeta
  • Publication number: 20180277984
    Abstract: Provided is a branch connector capable of achieving desired waterproofing functionality by supporting the waterproofing gel in a compressing manner, while stably maintaining a closed state by reducing repulsive force acting in an opening direction of a pair of split housings. The pair of split housings (a first split housing (10) and a second split housing (20)) includes a gel-escaping space (Z), formed around a gel-supporting space (Y), for accommodating portions of waterproofing gels (a first waterproofing gel (70) and a second waterproofing gel (80)) pushed out of the gel-supporting space (Y).
    Type: Application
    Filed: June 28, 2016
    Publication date: September 27, 2018
    Inventors: Tetsuya HATA, Shigeki OHARA, Toshiyuki ISHIGURO, Hiroshi KOBAYASHI, Motoya HARA
  • Patent number: 9660991
    Abstract: A method includes receiving biometric data, the biometric data non-uniformly distributed and processing the biometric data to a level of randomness as a plaintext vector, the level of randomness associated with a security level. The method also includes encrypting the plaintext vector using a relational linearity encryption scheme to generate a linearity ciphertext representative of the plaintext vector, encrypting the plaintext vector using a relational proximity encryption scheme to generate a proximity ciphertext representative of the plaintext vector, and communicating the linearity ciphertext and the proximity ciphertext to an authentication server.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: May 23, 2017
    Assignee: FUJITSU LIMITED
    Inventors: Ryota Kamakari, Takeshi Shimoyama, Hiroshi Tsuda, Yoshinori Yaginuma, Avradip Mandal, Arnab Roy, Hart Montgomery, Toshiyuki Ishiguro, Kouhei Shigeta
  • Publication number: 20170085382
    Abstract: A method includes receiving biometric data, the biometric data non-uniformly distributed and processing the biometric data to a level of randomness as a plaintext vector, the level of randomness associated with a security level. The method also includes encrypting the plaintext vector using a relational linearity encryption scheme to generate a linearity ciphertext representative of the plaintext vector, encrypting the plaintext vector using a relational proximity encryption scheme to generate a proximity ciphertext representative of the plaintext vector, and communicating the linearity ciphertext and the proximity ciphertext to an authentication server.
    Type: Application
    Filed: February 10, 2016
    Publication date: March 23, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Ryota KAMAKARI, Takeshi SHIMOYAMA, Hiroshi TSUDA, Yoshinori YAGINUMA, Avradip MANDAL, Arnab ROY, Hart MONTGOMERY, Toshiyuki ISHIGURO, Kouhei SHIGETA
  • Publication number: 20170019255
    Abstract: A method of equality verification using relational encryption including receiving a relational key that includes a first relational key component and a registration ciphertext that includes an encryption of a first plaintext data set. The method includes storing the registration ciphertext without decrypting the registration ciphertext. After the storing of the registration ciphertext, the method includes receiving an authentication request and communicating a safeguard data set that includes a random challenge in response to the authentication request. The method includes receiving an encrypted response that is generated based on the safeguard data set and a second plaintext data set. The method includes verifying a relationship between the encrypted response and the registration ciphertext using the relational key without decrypting the encrypted response and without decrypting the registration ciphertext. The relationship indicates that equality exists between the first and the second plaintext data sets.
    Type: Application
    Filed: February 10, 2016
    Publication date: January 19, 2017
    Applicant: FUJITSU LIMITED
    Inventors: Ryota KAMAKARI, Takeshi SHIMOYAMA, Hiroshi TSUDA, Yoshinori YAGINUMA, Avradip MANDAL, Arnab ROY, Hart MONTGOMERY, Toshiyuki ISHIGURO, Kouhei SHIGETA
  • Patent number: 8267132
    Abstract: There is provided a pneumatic tire sufficiently improving drainage performance, driving stability, uneven wear resistance and quiet performance. A pneumatic tire 1 has at least one tire circumferential groove 9 extending along the tire circumferential direction in a tread portion 2. In addition, there are provided in a surface of the tread portion, a plurality of inclined grooves consisting of two or more small grooves 10 inclined at the same direction with respect to the tire circumferential direction and having an inclination angle within a range between 10 degrees and 60 degrees and configured in a zig-zag manner by coupling ends of the small grooves 10. The inclined grooves 11 are included in any widthwise section of the tread portion 2 of the tire and a part of the inclined grooves 11 is opened to the tire circumferential groove 9.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: September 18, 2012
    Assignee: Bridgestone Corporation
    Inventors: Kensuke Dobashi, Toshiyuki Ishiguro, Sotaro Iwabuchi, Shungo Fujita
  • Publication number: 20100224296
    Abstract: There is provided a pneumatic tire sufficiently improving drainage performance, driving stability, uneven wear resistance and quiet performance. A pneumatic tire 1 has at least one tire circumferential groove 9 extending along the tire circumferential direction in a tread portion 2. In addition, there are provided in a surface of the tread portion, a plurality of inclined grooves consisting of two or more small grooves 10 inclined at the same direction with respect to the tire circumferential direction and having an inclination angle within a range between 10 degrees and 60 degrees and configured in a zig-zag manner by coupling ends of the small grooves 10. The inclined grooves 11 are included in any widthwise section of the tread portion 2 of the tire and a part of the inclined grooves 11 is opened to the tire circumferential groove 9.
    Type: Application
    Filed: September 29, 2008
    Publication date: September 9, 2010
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Kensuke Dobashi, Toshiyuki Ishiguro, Sotaro Iwabuchi, Shungo Fujita
  • Publication number: 20080041358
    Abstract: An apparatus includes a cam 3, a lever 8, a switch 10, a spring 9 and fire detection means 15. Utilizing an interlocking movement and an operation of the switch, a motor 2 is driven under a microcomputer control 23, and by doing so, the automatic opening and closing movement of a cover 1 can be effected smoothly and stably. Even when a fire occurs at a cooking device 13 below the apparatus, the fire detection means 15 stops the operation of a circulating fan 11, and also stops the cover 1 in an open condition, and by doing so, the spreading of the fire can be limited to a minimum, and also an abnormality in the opening and closing of the cover 1 can be indicated at a display portion 23, and therefore the safety, the durability and the degree of satisfaction of customers can be enhanced.
    Type: Application
    Filed: August 13, 2007
    Publication date: February 21, 2008
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Masato Yamauchi, Toshiyuki Ishiguro
  • Patent number: 7282683
    Abstract: The present invention provides a high frequency heating apparatus having a structure, which can be mounted/dismounted an air-exhausting grille without any tools. In this apparatus, an air-exhausting grille is arranged by that a fixing claw portion having a bent Z-shape, a fixing hooking portion having a concave notch, and a magnetic joint plate are arranged, whereas a main body located opposite to the air-exhausting grille is arranged by that a slit hole, a hooking flange, and a magnetic fixing plate are arranged. As a result, since the magnetic joint plate is absorbed with the magnetic fixing plate to be fixed with each other, the mounting/dismounting work capability of the air-exhausting grille can be improved without using the tool in a simple manner, and furthermore, a clean cooking appliance can be secured, while the cooking appliance can be readily cleaned.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: October 16, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki
  • Patent number: 7263989
    Abstract: An apparatus includes a cam 3, a lever 8, a switch 10, a spring 9 and fire detection means 15. Utilizing an interlocking movement and an operation of the switch, a motor 2 is driven under a microcomputer control 23, and by doing so, the automatic opening and closing movement of a cover 1 can be effected smoothly and stably. Even when a fire occurs at a cooking device 13 below the apparatus, the fire detection means 15 stops the operation of a circulating fan 11, and also stops the cover 1 in an open condition, and by doing so, the spreading of the fire can be limited to a minimum, and also an abnormality in the opening and closing of the cover 1 can be indicated at a display portion 23, and therefore the safety, the durability and the degree of satisfaction of customers can be enhanced.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: September 4, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masato Yamauchi, Toshiyuki Ishiguro
  • Patent number: 7022958
    Abstract: A high frequency heating apparatus is equipped with an oven hood fan, including a heating chamber for entering/deriving an article to be heated into/from the heating chamber, an electric power supplying apparatus for radiating electromagnetic waves into the heating chamber, a cooling fan for cooling the electric power supplying apparatus, another heat-cooking apparatus operated by gas or electric power, which is installed under an appliance main body, and a ventilation fan for sucking hot air from an air intake port, which is generated from the another heat-cooking apparatus, and for exhausting the sucked hot air. In the apparatus, wind which cools a heat generating unit of the electric power supplying apparatus by the cooling fan is joined onto an air intake path of the ventilation fan.
    Type: Grant
    Filed: March 21, 2005
    Date of Patent: April 4, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Hisahiro Nishitani
  • Patent number: 6974936
    Abstract: A high frequency heating apparatus is equipped with an oven hood fan, including a heating chamber for entering/deriving an article to be heated into/from the heating chamber, an electric power supplying apparatus for radiating electromagnetic waves into the heating chamber, a cooling fan for cooling the electric power supplying apparatus, another heat-cooking apparatus operated by gas or electric power, which is installed under an appliance main body, and a ventilation means for sucking hot air from an air intake port, which is generated from the another heat-cooking apparatus, and for exhausting the sucked hot air. In the apparatus, wind which cools a heat generating unit of the electric power supplying apparatus by the cooling fan is joined onto an air intake path of the ventilation fan.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: December 13, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Hisahiro Nishitani
  • Publication number: 20050178763
    Abstract: The present invention provides a high frequency heating apparatus having a structure, which can be mounted/dismounted an air-exhausting grille without any tools. In this apparatus, an air-exhausting grille is arranged by that a fixing claw portion having a bent Z-shape, a fixing hooking portion having a concave notch, and a magneto joint plate are arranged, whereas a main body located opposite to the air-exhausting grille is arranged by that a slit hole, a hooking flange, and a magneto fixing plate are arranged. As a result, since the magneto joint plate is absorbed with the magneto fixing plate to be fixed with each other, the mounting/dismounting work capability of the air-exhausting grille can be improved without using the tool in a simple manner, and furthermore, a clean cooking appliance can be secured, while the cooking appliance can be readily cleaned.
    Type: Application
    Filed: April 14, 2005
    Publication date: August 18, 2005
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki
  • Publication number: 20050167425
    Abstract: A high frequency heating apparatus is equipped with an oven hood fan, including a heating chamber for entering/deriving an article to be heated into/from the heating chamber, an electric power supplying apparatus for radiating electromagnetic waves into the heating chamber, a cooling fan for cooling the electric power supplying apparatus, another heat-cooking apparatus operated by gas or electric power, which is installed under an appliance main body, and a ventilation fan for sucking hot air from an air intake port, which is generated from the another heat-cooking apparatus, and for exhausting the sucked hot air. In the apparatus, wind which cools a heat generating unit of the electric power supplying apparatus by the cooling fan is joined onto an air intake path of the ventilation fan.
    Type: Application
    Filed: March 21, 2005
    Publication date: August 4, 2005
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Hisahiro Nishitani
  • Patent number: 6894260
    Abstract: The present invention provides a high frequency heating apparatus having a structure, which can be mounted/dismounted an air-exhausting grill without any tools. In this apparatus, an air-exhausting grill is arranged by that a fixing claw portion having a bent Z-shape, a fixing hooking portion having a concave notch, and a magneto joint plate are arranged, whereas a main body located opposite to the air-exhausting grill is arranged by that a slit hole, a hooking flange, and a magneto fixing plate are arranged. As a result, since the magneto joint plate is absorbed with the magneto fixing plate to be fixed with each other, the mounting/dismounting work capability of the air-exhausting grill can be improved without using the tool in a simple manner, and furthermore, a clean cooking appliance can be secured, while the cooking appliance can be readily cleaned.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: May 17, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki
  • Publication number: 20050087184
    Abstract: An apparatus includes a cam 3, a lever 8, a switch 10, a spring 9 and fire detection means 15. Utilizing an interlocking movement and an operation of the switch, a motor 2 is driven under a microcomputer control 23, and by doing so, the automatic opening and closing movement of a cover 1 can be effected smoothly and stably. Even when a fire occurs at a cooking device 13 below the apparatus, the fire detection means 15 stops the operation of a circulating fan 11, and also stops the cover 1 in an open condition, and by doing so, the spreading of the fire can be limited to a minimum, and also an abnormality in the opening and closing of the cover 1 can be indicated at a display portion 23, and therefore the safety, the durability and the degree of satisfaction of customers can be enhanced.
    Type: Application
    Filed: July 28, 2004
    Publication date: April 28, 2005
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masato Yamauchi, Toshiyuki Ishiguro
  • Patent number: 6657172
    Abstract: A high frequency heating apparatus equipped with the oven hood comprises a heating chamber, a power supply apparatus for controlling high frequency output power by way of a semiconductor element, ventilation, and illumination for illuminating an object to be heated by another heat-cooking apparatus. Since the high frequency output power is controlled in such a manner that an optimum heating output power is applied in a linear manner for a proper time period, the heating output power can be controlled in the linear manner and the high frequency heating apparatus can be largely reduced in weight. As a result, the highest-speed heat-cooking operation by receiving the maximum high frequency output power can be realized, and the optimum cooking performance can be realized. Both the installation performance of the appliance to the mounting wall plane and the safety performance achieved by stably fixing the appliance can also be largely improved.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: December 2, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Ikuhiro Inada, Masato Matsuda
  • Publication number: 20030111464
    Abstract: The present invention provides a high frequency heating apparatus having a structure, which can be mounted/dismounted an air-exhausting grill without any tools. In this apparatus, an air-exhausting grill is arranged by that a fixing claw portion having a bent Z-shape, a fixing hooking portion having a concave notch, and a magneto joint plate are arranged, whereas a main body located opposite to the air-exhausting grill is arranged by that a slit hole, a hooking flange, and a magneto fixing plate are arranged. As a result, since the magneto joint plate is absorbed with the magneto fixing plate to be fixed with each other, the mounting/dismounting work capability of the air-exhausting grill can be improved without using the tool in a simple manner, and furthermore, a clean cooking appliance can be secured, while the cooking appliance can be readily cleaned.
    Type: Application
    Filed: December 2, 2002
    Publication date: June 19, 2003
    Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki
  • Publication number: 20030047560
    Abstract: The present invention provides a high frequency heating apparatus equipped with an oven hood fan, including a heating chamber for entering/deriving an article to be heated into/from the heating chamber; an electric power supplying apparatus for radiating electromagnetic waves into the heating chamber; cooling means for cooling the electric power supplying apparatus; another heat-cooking apparatus provided with heating means operated by gas and electric power, which is installed under an appliance main body; and ventilating means for sucking hot air from an air intake port, which is generated from the another heat-cooking apparatus, and for exhausting the sucked hot air. In the apparatus, wind which cools a heat generating unit of the electric power supplying apparatus by the cooling means is joined onto an air intake path of the ventilating means.
    Type: Application
    Filed: September 5, 2002
    Publication date: March 13, 2003
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Hisahiro Nishitani
  • Publication number: 20030015525
    Abstract: A high frequency heating apparatus equipped with the oven hood comprises a heating chamber, a power supply apparatus for controlling high frequency output power by way of a semiconductor element, a ventilation means, and an illumination means for illuminating an object to be heated of another heat-cooking apparatus. Since the high frequency output power is controlled in such a manner that optimum heating output power is applied in a linear manner for a proper time period, the heating output power can be controlled in the linear manner and the high frequency heating apparatus can be largely made in light weight. As a result, highest-speed heat-cooking operation by receiving the maximum high frequency output power can be realized, the optimum cooking performance can be realized, and both installation performance of the appliance to the mounting wall plane and safety performance achieved by stably fixing the appliance can be largely improved.
    Type: Application
    Filed: July 17, 2002
    Publication date: January 23, 2003
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masato Yamauchi, Toshiyuki Ishiguro, Hirofumi Yoshimura, Fumihiko Migaki, Ikuhiro Inada, Masato Matsuda