Patents by Inventor Hideki Imai

Hideki Imai 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: 11804498
    Abstract: The present invention has an object to reduce the number of necessary masks to reduce manufacturing cost. A method of manufacturing a display device includes: forming electrodes or first lines; forming a first insulating film covering the electrodes or the first lines; forming a second insulating film covering the first insulating film; collectively forming first contact holes through the first insulating film and the second insulating film so as to expose parts of the electrodes or parts of the first lines; planarizing a surface of the second insulating film; and forming a first conductive layer to be connected from the surface of the second insulating film to the exposed parts of the electrodes or the exposed parts of the first lines via the first contact holes.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: October 31, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tatsuya Kawasaki, Tohru Daitoh, Hajime Imai, Hideki Kitagawa, Yoshihito Hara, Masaki Maeda, Yoshiharu Hirata, Teruyuki Ueda
  • Patent number: 11800629
    Abstract: A magneto-optical trap apparatus includes a vacuum vessel for encapsulating an atom to be trapped, an anti-Helmholtz coil for applying a magnetic field to an inside of the vacuum vessel, a laser device for generating a laser beam, and an irradiation device for irradiating the generated laser beam from a plurality of directions. The laser beam includes a first laser beam detuned from a first resonance frequency when the atom transits from a total angular momentum quantum number F in a ground state to a total angular momentum quantum number F?=F+1 in an excited state, and a second laser beam detuned from a second resonance frequency when the atom transits from the total angular momentum quantum number F in the ground state to a total angular momentum quantum number F?=F?1 in the excited state, among transitions from J=0 in a ground state to J?=1 in an excited state.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: October 24, 2023
    Assignees: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, RIKEN
    Inventors: Hiromitsu Imai, Tomoyo Akatsuka, Katsuya Oguri, Atsushi Ishizawa, Hideki Gotoh, Hidetoshi Katori, Masao Takamoto
  • Patent number: 11797791
    Abstract: Provided is a reading apparatus capable of efficiently reading information from an RFID tag. A reading apparatus (1) includes at least one antenna (2) and a casing (10). The casing (10) has reflective surfaces (12) in at least a part of the inner side. The antenna (2) is provided in the casing (10), and is used to read information from an RFID tag. The antenna (2) is disposed in the vicinity of reflective surfaces (12A) and (12B) having two or more normal lines (N1) and (N2) at different angles, and radiates electromagnetic waves toward at least a direction that is not parallel to the directions of the normal lines (N1) and (N2).
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: October 24, 2023
    Assignee: NEC Platforms, Ltd.
    Inventors: Hideki Matsuura, Yuta Imai
  • Publication number: 20230332931
    Abstract: A distributed position detection rope includes: basic optical elements each including an optical fiber, tensile strength bodies, and a sheath material and the tensile strength bodies; a cylindrical inner sheath layer having a first optical element formed by arranging a plurality of the basic optical elements which are arranged at positions on the same circle and are helically wound at a predetermined pitch along the axial direction of the axis; and a cylindrical outer sheath layer on the outer side of the inner sheath layer and having a second optical element which are arranged at positions on the same circle and are helically wound along the axial direction so as to have a placement angle different from that of the basic optical elements of the first optical element.
    Type: Application
    Filed: October 15, 2020
    Publication date: October 19, 2023
    Applicants: NEUBREX CO., LTD., NISHI NIPPON ELECTRIC WIRE & CABLE CO., LTD.
    Inventors: Kinzo KISHIDA, Yoshiaki YAMAUCHI, Junichi KAWABATA, Shoji SENO, Hideki NAGATANI, Michio IMAI, Yukihiro HAMADA, Kazumitu WATANABE
  • Patent number: 11790867
    Abstract: According to an embodiment of the present invention, an active matrix substrate (100) includes a display region (DR) defined by a plurality of pixel regions (P) arranged in a matrix and a peripheral region (FR) located around the display region. The active matrix substrate includes a substrate (1), a first TFT (10), and a second TFT (20). The first TFT is supported by the substrate and disposed in the peripheral region. The second TFT is supported by the substrate and disposed in the display region. The first TFT includes a crystalline silicon semiconductor layer (11), which is an active layer. The second TFT includes an oxide semiconductor layer (21), which is an active layer. The first TFT and the second TFT each have a top-gate structure.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: October 17, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tetsuo Kikuchi, Hideki Kitagawa, Hajime Imai, Toshikatsu Itoh, Masahiko Suzuki, Teruyuki Ueda, Kengo Hara, Setsuji Nishimiya, Tohru Daitoh
  • Publication number: 20230286505
    Abstract: A driving assistance apparatus includes an on-vehicle sensor and a driving assistance ECU. The ECU detects presence of a preceding vehicle traveling immediately forward of an own vehicle, on the basis of pieces of information from the sensor, chooses the preceding vehicle as a vehicle to follow, and controls a drive apparatus, a braking apparatus, and a steering apparatus such that the own vehicle follows the vehicle to follow. When the own vehicle follows a first vehicle chosen as the vehicle to follow and the speed of the own vehicle or the first vehicle is a predetermined threshold speed or lower, upon determination that the own vehicle can follow a second vehicle traveling faster than the own vehicle in a second lane located adjacent to a first lane in which the own vehicle is traveling, the ECU changes the vehicle to follow from the first vehicle to the second vehicle.
    Type: Application
    Filed: March 6, 2023
    Publication date: September 14, 2023
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Hideki KAMATANI, Masayuki HOSOKAWA, Yuuki TAKEUCHI, Ryotarou ARAKI, Yasuhiro IMAI
  • Patent number: 8972300
    Abstract: A transmission device including: copy unit that extracts part or all of partial contents, as tracking information, from a content, and copies the extracted tracking information, thereby generating pieces of tracking information; candidate information obtaining unit that obtains pieces of candidate information respectively corresponding to the pieces of tracking information; evidence information obtaining unit that obtains evidence information generated dependently on a piece of candidate information selected by the reception device from among the pieces of candidate information; hash generating unit that generates hash values respectively in accordance with the pieces of candidate information; embed unit that embeds the hash values respectively into the pieces of tracking information, and embeds the evidence information into each piece of tracking information; and transmit unit that transmits each piece of tracking information in which a hash value and the evidence information have been embedded.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: March 3, 2015
    Assignee: Panasonic Corporation
    Inventors: Masao Nonaka, Toshihisa Nakano, Yuichi Futa, Motoji Ohmori, Kazukuni Kobara, Ryo Nojima, Hideki Imai
  • Patent number: 8601590
    Abstract: A content distribution system for transferring contents between transmission device and reception device. The transmission device includes: key obtaining unit that obtains, from reception device, public keys and public key identifiers; watermark embedding unit that embeds a different public key identifier, as electronic watermark, into each of contents that are identical in substance; an encryption unit that encrypts contents using public keys to generate encrypted contents; and transmission unit that transmits encrypted contents to reception device. The reception device includes: key storage unit storing public keys, public key identifiers, and a private key that makes a pair with one of the public keys; key transmission unit that transmits public keys and public key identifiers to the transmission device; content receiving unit that receives encrypted contents from transmission device; and decryption unit that obtains a content from the received encrypted contents, using the private key.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: December 3, 2013
    Assignee: Panasonic Corporation
    Inventors: Toshihisa Nakano, Masao Nonaka, Yuichi Futa, Motoji Ohmori, Ryo Nojima, Kazukuni Kobara, Hideki Imai
  • Patent number: 8180059
    Abstract: A management apparatus reduces the number of pieces of unique information each not generated from another piece of unique information, among unique information being bases of keys assigned to managed apparatuses. The management apparatus calculates, for nodes in layers other than tree structure leaves, subsets of apparatus identifiers subordinate to the nodes, searches for a subset wholly containing another subset in the lowermost layer other than a leaf layer from an immediately-upper layer and mutually associates these subsets, searches for another subset wholly containing the containing subset from a same or an immediately-upper layer and mutually associates these subsets, controls this processing to repeat up to the uppermost layer, controls these processings to repeat on all subsets in the lowermost layer, makes unique information correspond to subsets in the lowermost layer, and makes information derivatively obtained from the unique information correspond to subsets connected due to the associating.
    Type: Grant
    Filed: November 25, 2004
    Date of Patent: May 15, 2012
    Assignee: Panasonic Corporation
    Inventors: Toshihisa Nakano, Nuttapong Attrapadung, Kazukuni Kobara, Hideki Imai
  • Publication number: 20110192838
    Abstract: Disclosed is an inductive heating device which can lower losses in the device and readily provide cooling, wherein a controller is operated in a first control mode which controls the operation so that a unipolar first switching element and a unipolar second switching element conduct alternately when one of a bipolar third switching element and a bipolar fourth switching element is conducting and the other is disconnected when an aluminum object to be heated is heated, and in a second control mode in which the conduction of the first switching element and the fourth switching element and the conduction of the second switching element and the third switching element alternate when an iron object to be heated is heated.
    Type: Application
    Filed: May 13, 2009
    Publication date: August 11, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Atsushi Fujita, Makoto Imai, Hideki Sadakata, Yuta Miura, Shinichiro Sumiyoshi
  • Patent number: 7936883
    Abstract: A quantum key distribution protocol is provided that reduces the maximum value of the leaked information amount over the same distance when an adversary makes a photon number splitting attack more than the reduction by the BB84 protocol and the SARG protocol, by making use of the advantages of the BB84 protocol and the SARG protocol. By properly proportioning the existing BB84 protocol and the SARG protocol in accordance with the rate determined by the communication distance between the sender and the receiver of the coherent light, a protocol that is more robust against photon number splitting attack than the known existing protocols can be realized, and long distance quantum key distribution, which was not possible until now, becomes possible.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: May 3, 2011
    Assignee: The Foundation for the Promotion of Industrial Science
    Inventors: Hideki Imai, Manabu Hagiwara, Makoto Eguchi
  • Patent number: 7925893
    Abstract: A copyright protection system is provided that keeps manufacturing costs down regardless of the total number of playback apparatuses belonging to the system. In this system, a device key generating unit of a key management apparatus performs a modular exponentiation operation on a random number with an inverse element of a product of predetermined prime numbers, so as to generate and distribute device keys to playback apparatuses in one-to-one correspondence. A key revocation data generating unit generates, as key revocation data, information identifying the prime numbers used by an unrevoked playback apparatus to generate a decryption key from its device key and distributes the key revocation data along with an encrypted content to each playback apparatus. Playback apparatuses each attempt to generate a description key based on the key revocation data, and only those playback apparatuses that have successfully generated a decryption key are able to decrypt the encrypted content.
    Type: Grant
    Filed: May 24, 2004
    Date of Patent: April 12, 2011
    Assignee: Panasonic Corporation
    Inventors: Toshihisa Nakano, Attrapadung Nuttapong, Kazukuni Kobara, Hideki Imai
  • Patent number: 7895436
    Abstract: An authentication system for mutual authentication between a terminal and a server characterized by the fact that the terminal comprises a memory means that pre-stores an authentication information P? for terminal storage; a concatenation means that yields a value P using a specific calculation formula with the input of the authentication information P? read from the memory means and a password entered for authentication; a mask operation means that yields a value Y1 using a specific calculation formula with the input of value P and an internally generated random number, and then sends Y1 to the server; and a master key generation means that yields a value MK using a specific calculation formula with the input of value P, an internally generated random number and a value Y2 received from the server, and the server comprises a memory means that pre-stores a password verification data H for server registration; a mask operation means that yields a value Y2 using a specific calculation formula with the input of
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: February 22, 2011
    Assignee: The Foundation for the Promotion of Industrial Science
    Inventors: Hideki Imai, Kazukuni Kobara, Seonghan Shin
  • Patent number: 7617536
    Abstract: An unauthorized apparatus detection device detecting clones of a playback device. In a management server, a reception processing unit acquires a user terminal identifier and a first random number of a user terminal, judges whether a second management server random number, which is stored in a storage unit in correspondence with the user terminal identifier, matches the first user terminal random number. If the two fail to match, a display unit displays a message indicating that a clone exists. If the two match, a terminal information generation unit generates a new random number, and writes the generated random number as the second random number in the storage unit. A transmission processing unit transmits the generated random number to the user terminal via a transmission/reception unit and the user terminal updates the first user terminal random number to the generated random number.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: November 10, 2009
    Assignees: Panasonic Corporation, The University of Tokyo
    Inventors: Masao Nonaka, Toshihisa Nakano, Yuichi Futa, Motoji Ohmori, Takeshi Gomi, Kazukuni Kobara, Hideki Imai
  • Patent number: 7554586
    Abstract: A system and method for multi-spectral image capture of a first scene includes acquiring a first series of images of the first scene with one or more image acquisition systems and filtering each of the first series of images of the scene with a different non-interference filter, illuminating each image of the first series of images with a different illuminant, or acquiring each of the images of the first series of images with a different image acquisition system. Each of the image acquisition systems has at least one color channel, each of the non-interference filters has a different spectral transmittance, and each of the illuminants has a different spectral power distribution.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: June 30, 2009
    Assignee: Rochester Institute of Technology
    Inventors: Francisco Hideki Imai, Roy Stephen Berns
  • Publication number: 20080101612
    Abstract: A quantum key distribution protocol is provided that reduces the maximum value of the leaked information amount over the same distance when an adversary makes a photon number splitting attack more than the reduction by the BB84 protocol and the SARG protocol, by making use of the advantages of the BB84 protocol and the SARG protocol. By properly proportioning the existing BB84 protocol and the SARG protocol in accordance with the rate determined by the communication distance between the sender and the receiver of the coherent light, a protocol that is more robust against photon number splitting attack than the known existing protocols can be realized, and long distance quantum key distribution, which was not possible until now, becomes possible.
    Type: Application
    Filed: August 30, 2005
    Publication date: May 1, 2008
    Inventors: Hideki Imai, Manabu Hagiwara, Makoto Eguchi
  • Publication number: 20080016001
    Abstract: To provide an unauthorized device detection system capable of finding and specifying a device that was manufactured or altered unauthorizedly. A DVD player 400a writes its own device ID to a memory card 200a. When a user purchases content, a register device 300 reads a media ID and the device ID from the memory card 200a, and transmits the media ID and the device ID to a management server device 100. The management server device 100 calculates, based on pairs of media IDs and device IDs stored beforehand and the received pair of media ID and device ID, a total number of media IDs corresponding to the received device ID, and compares the calculated total number with a threshold value. If the total number exceeds the threshold value, the management server device 100 judges that the DVD player identified by the received device ID is an unauthorized device.
    Type: Application
    Filed: December 12, 2005
    Publication date: January 17, 2008
    Inventors: Toshihisa Nakano, Masao Nonaka, Yuichi Futa, Motoji Ohmori, Takeshi Gomi, Kazukuni Kobara, Hideki Imai
  • Publication number: 20070282749
    Abstract: A transmission device including: copy unit that extracts part or all of partial contents, as tracking information, from a content, and copies the extracted tracking information, thereby generating pieces of tracking information; candidate information obtaining unit that obtains pieces of candidate information respectively corresponding to the pieces of tracking information; evidence information obtaining unit that obtains evidence information generated dependently on a piece of candidate information selected by the reception device from among the pieces of candidate information; hash generating unit that generates hash values respectively in accordance with the pieces of candidate information; embed unit that embeds the hash values respectively into the pieces of tracking information, and embeds the evidence information into each piece of tracking information; and transmit unit that transmits each piece of tracking information in which a hash value and the evidence information have been embedded.
    Type: Application
    Filed: April 26, 2007
    Publication date: December 6, 2007
    Inventors: Masao Nonaka, Toshihisa Nakano, Yuichi Futa, Motoji Ohmori, Kazukuni Kobara, Ryo Nojima, Hideki Imai
  • Patent number: D761736
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: July 19, 2016
    Assignee: Sony Corporation
    Inventors: Hideki Imai, Isao Soma, Kazuyoshi Takemura
  • Patent number: D898675
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: October 13, 2020
    Assignee: SONY CORPORATION
    Inventors: Hideki Imai, Isao Soma, Kazuyoshi Takemura