Patents by Inventor Kenichi Akiyama
Kenichi Akiyama 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: 11971579Abstract: A multi-mode interferometric optical waveguide device includes: a multi-mode interferometric optical waveguide which includes a first reflective surface; a first single-mode waveguide connected to the multi-mode interferometric optical waveguide; and a second single-mode waveguide connected to the multi-mode interferometric optical waveguide and oppose the first reflective surface. Consequently, the multi-mode interferometric optical waveguide device can propagate light from the first single-mode waveguide to the second single-mode waveguide, with further reduced optical losses.Type: GrantFiled: October 10, 2018Date of Patent: April 30, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Masakazu Takabayashi, Kenichi Abe, Satoshi Nishikawa, Koichi Akiyama
-
Publication number: 20240099021Abstract: According to one embodiment, a magnetic memory device includes a lower insulating layer, first and second conductive portions provided in the lower insulating layer, first and second memory cells provided on the lower insulating layer and on the respective first and second conductive portions, and each including a magnetoresistance effect element, a switching element and a bottom electrode connected to corresponding one of the first and second conductive portions. As viewed from a third direction, a width of each of the first and second conductive portions is less than a width of a corresponding bottom electrode. The lower insulating layer has a void under a region between the first and second memory cells.Type: ApplicationFiled: September 12, 2023Publication date: March 21, 2024Applicant: Kioxia CorporationInventors: Naoki AKIYAMA, Kenichi YOSHINO, Kazuya SAWADA, Hyungjun CHO, Takuya SHIMANO
-
Publication number: 20240099156Abstract: According to one embodiment, a magnetic memory device includes an electrode, and a magnetoresistance effect element provided on the electrode. The electrode includes a first electrode portion and a second electrode portion provided between the magnetoresistance effect element and the first electrode portion and containing a metal element selected from molybdenum (Mo) and ruthenium (Ru).Type: ApplicationFiled: September 14, 2023Publication date: March 21, 2024Applicant: Kioxia CorporationInventors: Kazuya SAWADA, Toshihiko NAGASE, Kenichi YOSHINO, Hyungjun CHO, Naoki AKIYAMA, Takuya SHIMANO, Tadaaki OIKAWA
-
Publication number: 20240099158Abstract: According to one embodiment, a magnetic memory device includes a first wiring line extending in a first direction, a second wiring line provided on an upper layer side of the first wiring line and extending in a second direction intersecting the first direction, and a memory cell provided between the first wiring line and the second wiring line and including a magnetoresistance effect element and a switching element which are stacked in a third direction intersecting the first direction and the second direction. The first wiring line includes a first conductive layer and a second conductive layer provided on the first conductive layer and formed of a material containing carbon (C).Type: ApplicationFiled: September 13, 2023Publication date: March 21, 2024Applicant: Kioxia CorporationInventors: Kenichi YOSHINO, Tadaaki OIKAWA, Kazuya SAWADA, Naoki AKIYAMA, Takuya SHIMANO, Hyungjun CHO
-
Publication number: 20240077772Abstract: A display device includes: a first substrate, a second substrate, a light-blocking portion, a pixel, and a wiring line. The second substrate has a main face opposite a main face of the first substrate. The light-blocking portion is disposed on the main face of the first substrate, including an opening, and blocking light. The pixel is disposed on the main faces of the first substrate and the second substrate and delimited by at least a part of the opening. The wiring line is disposed on the main face of the second substrate and at least partially overlapping the opening. The wiring line has a projection protruding toward a first substrate side. The projection has a surface including a curved surface and comprises a plurality of projections disposed at intervals in locations overlapping at least the opening.Type: ApplicationFiled: April 27, 2023Publication date: March 7, 2024Inventors: Hiroaki WADA, Junichi MORI, Takumi TOMITA, Kenichi NISHIMURA, Hiroto AKIYAMA
-
Publication number: 20230178574Abstract: According to an aspect, a detection device includes: a detection element formed on a substrate; a photodiode provided in the detection element; partial photodiodes included in the photodiode; an organic protective film covering the partial photodiodes; lenses provided so as to overlap the partial photodiodes; a first light-blocking layer between the organic protective films and the lenses and provided with first openings in regions overlapping the partial photodiodes; a second light-blocking layer between the first light-blocking layer and the lenses and provided with second openings in regions overlapping the partial photodiodes and the first openings; a first light-transmitting resin layer provided between the first light-blocking layer and the second light-blocking layer; and a second light-transmitting resin layer provided between the second light-blocking layer and the lenses.Type: ApplicationFiled: January 26, 2023Publication date: June 8, 2023Inventors: Keiji TAGO, Tetsuya YAMAMOTO, Kenichi AKIYAMA
-
Patent number: 8827812Abstract: To provide a game device that is capable, in a match in which a player character group including operating characters of a plurality of game players and one or more teammate character competes with an opponent character or an opponent character group opposing the player character group, of improving diversity of combination of the characters belonging to the player character group while suppressing increase of data amount. An operating character obtaining unit (30) obtains the player data on an operating player of each game player. A teammate character obtaining unit (32) obtains the player data on a teammate player of each game player. A game execution unit (36) carries out a game in which an operating team takes part in a soccer match with an opponent team, based on the player data on the respective operating players and that on the respective teammate players.Type: GrantFiled: June 18, 2009Date of Patent: September 9, 2014Assignee: Konami Digital Entertainment Co., Ltd.Inventors: Hitoshi Otomo, Takeshi Okubo, Yoshinori Shiigi, Motoki Kanematsu, Takashi Onishi, Kenichi Akiyama
-
Patent number: 8766965Abstract: A drive circuit of a display device includes decoder circuit which outputs a voltage based on a 8-bit digital value. The decoder circuit includes a first decoder circuit and a second decoder circuit which output one voltage respectively using upper-order 6 bits of the 8-bit digital value; a selection circuit which receives voltages outputted from the first decoder circuit and the second decoder circuit, and distributes the two voltages to three terminals; and an intermediate voltage output circuit which outputs an intermediate voltage which is a one of five kinds of values based on the three voltages. The first decoder circuit and the second decoder circuit respectively include a select-switch-type decoder circuit and a tournament-type decoder circuit.Type: GrantFiled: June 19, 2013Date of Patent: July 1, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Kenichi Akiyama, Yoshihiro Kotani, Hiroko Sehata, Kouichi Kotera
-
Patent number: 8610699Abstract: An object of the invention is to reduce the size of a decoder circuit of a display device. A decoder circuit which outputs voltages corresponding to 8-bit digital values includes a predecoder section, which includes an A decoder, B decoder, and C decoder, each of which is configured of a matrix type decoder circuit which carries out a three bits' worth of decoding, and a tournament type decoder circuit which carries out a three bits' worth of decoding, a selection circuit which, having input thereinto three voltages output respectively from the A decoder, B decoder, and C decoder, and applied to three output signal lines, selects two voltages of the three input voltages using a bit with one of the digital values and applies them to two output signal lines, and an intermediate voltage output circuit which, having input thereinto the two voltages selected by the selection circuit, outputs a voltage which is the average of the two voltages.Type: GrantFiled: February 5, 2010Date of Patent: December 17, 2013Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Kenichi Akiyama, Yoshihiro Kotani, Shuuichirou Matsumoto
-
Publication number: 20130307839Abstract: A liquid crystal display device used in miniaturized portable equipment includes a distribution circuit corresponding to a circuit scale of a drive circuit to cope with a high-definition multi-grayscale display. A liquid crystal display device having a liquid crystal display element and a liquid crystal drive circuit includes a distribution circuit which distributes a drive circuit output to a plurality of video signal lines within one scanning period. The distribution circuit is divided into a plurality of distribution circuits, and control signals are supplied to each distribution circuit from both end portions of the each distribution circuit. When an output part of the drive circuit is configured with a high withstand-voltage output amplifier and a low withstand-voltage output amplifier alternately connected with the distribution circuit, master and slave functions are imparted to the drive circuit allowing the drive circuit to cope with odd-numbered outputs.Type: ApplicationFiled: June 20, 2013Publication date: November 21, 2013Applicants: Panasonic Liquid Crystal Display Co., Ltd., Hitachi Displays, Ltd.Inventors: Yoshihiro KOTANI, Kenichi Akiyama
-
Publication number: 20130278579Abstract: A drive circuit of a display device includes decoder circuit which outputs a voltage based on a 8-bit digital value. The decoder circuit includes a first decoder circuit and a second decoder circuit which output one voltage respectively using upper-order 6 bits of the 8-bit digital value; a selection circuit which receives voltages outputted from the first decoder circuit and the second decoder circuit, and distributes the two voltages to three terminals; and an intermediate voltage output circuit which outputs an intermediate voltage which is a one of five kinds of values based on the three voltages. The first decoder circuit and the second decoder circuit respectively include a select-switch-type decoder circuit and a tournament-type decoder circuit.Type: ApplicationFiled: June 19, 2013Publication date: October 24, 2013Inventors: Kenichi Akiyama, Yoshihiro Kotani, Hiroko Sehata, Kouichi Kotera
-
Patent number: 8531377Abstract: A liquid crystal display device used in miniaturized portable equipment includes a distribution circuit to cope with a high-definition multi-grayscale display. A distribution circuit distributes an output of a drive circuit to a plurality of video signal lines within one scanning period, the distribution circuit being divided into a plurality of distribution circuits, and control signals being supplied to each distribution circuit from both end portions of each distribution circuit. When an output part of the drive circuit is configured such that a high withstand-voltage output amplifier and a low withstand-voltage output amplifier are alternately connected with the distribution circuit, a master function and a slave function are imparted to the drive circuit so as to allow the drive circuit to cope with odd-numbered outputs.Type: GrantFiled: November 19, 2008Date of Patent: September 10, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Yoshihiro Kotani, Kenichi Akiyama
-
Patent number: 8477131Abstract: A decoder circuit which outputs a voltage based on a 8-bit digital value includes: a first decoder circuit and a second decoder circuit which output one voltage respectively using upper-order 6 bits of the 8-bit digital value; a selection circuit which receives voltages outputted from the first decoder circuit and the second decoder circuit, and distributes the two voltages to three terminals; and an intermediate voltage output circuit which outputs an intermediate voltage which is a one of five kinds of values based on the three voltages. The first decoder circuit and the second decoder circuit respectively include a select-switch-type decoder circuit and a tournament-type decoder circuit. Due to such a constitution, it is possible to reduce a circuit scale of the decoder circuit which outputs the voltage corresponding to the 8-bit digital value.Type: GrantFiled: June 29, 2010Date of Patent: July 2, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Kenichi Akiyama, Yoshihiro Kotani, Hiroko Sehata, Kouichi Kotera
-
Patent number: 8444463Abstract: A game device is provided. The game device includes a pass target selector, an operated target switcher, a first player controller, and a second player controller. The pass target selector selects a player character to be a pass target in a case where a first player character is in possession of a moving object. The switcher switches the user operated target from the first player character to a second player character. The first player controller moves the first player character and the moving object after switching, based on a position of an opponent player character, determines whether positions of the first player character or the moving object and the second character satisfy a condition, and causes, if the condition is satisfied, the first player character to make a pass to the second player character. The second player controller moves the second player character after switching.Type: GrantFiled: June 3, 2009Date of Patent: May 21, 2013Assignee: Konami Digital Entertainment Co., Ltd.Inventors: Toshiyuki Terada, Naoya Hatsumi, Hitoshi Otomo, Kenichi Akiyama, Motoki Kanematsu, Takeshi Okubo, Takashi Onishi, Yoshinori Shiigi
-
Publication number: 20120192003Abstract: In order to monitor the status of a computer by monitoring the power consumption of the computer, a monitoring server (300) is equipped with: a power status database (400) in which power consumption patterns for each status of a computer (500) are stored; and a computer status detection unit (220) that determines which pattern stored in the power status database resembles the transition pattern of the measurement data obtained by the data acquisition unit (205), and then detects the status corresponding to the pattern which is deemed to be similar to the status of the computer being monitored.Type: ApplicationFiled: August 19, 2010Publication date: July 26, 2012Applicant: Hitachi, Ltd.Inventors: Kenichi Akiyama, Keisuke Hatasaki, Yoshifumi Takamoto, Masayoshi Kitamura
-
Publication number: 20110246261Abstract: A method and system for user-generated content policy optimization are described. In example embodiments, a harvester module receives listing data from a database. The listing data represents user-generated content maintained by a content serving platform, such as a network-based marketplace. An impact module calculates a compliance impact based on a profile report. The profile report includes use of elements in the listing data. A policy module analyzes the policy affecting the user-generated content.Type: ApplicationFiled: April 1, 2010Publication date: October 6, 2011Inventors: Farhang Kassaei, Kenichi Akiyama, Wisam G. Daoud, Angela K. Lau, Snezana Sahter
-
Publication number: 20110237333Abstract: To provide a game device that is capable, in a match in which a player character group including operating characters of a plurality of game players and one or more teammate character competes with an opponent character or an opponent character group opposing the player character group, of improving diversity of combination of the characters belonging to the player character group while suppressing increase of data amount. An operating character obtaining unit (30) obtains the player data on an operating player of each game player. A teammate character obtaining unit (32) obtains the player data on a teammate player of each game player. A game execution unit (36) carries out a game in which an operating team takes part in a soccer match with an opponent team, based on the player data on the respective operating players and that on the respective teammate players.Type: ApplicationFiled: June 18, 2009Publication date: September 29, 2011Applicant: KONAMI DIGITAL ENTERTAINMENT CO., LTD.Inventors: Hitoshi Otomo, Takeshi Okubo, Yoshinori Shiigi, Motoki Kanematsu, Takashi Onishi, Kenichi Akiyama
-
Publication number: 20110136557Abstract: To provide a game device capable of improving operability of an operation related to a pass between player characters. If a second player character is selected as a pass target while a first player character which is a user operated target is in possession of a moving object, an operated target switching unit (64) switches the user operated target from the first player character to the second player character. A second player control unit (66b) moves the second player character, based on a user operation. A first player control unit (66a) moves the first player character and the moving object, based on the position of a player character belonging to the opponent team. In addition, the first player control unit (66a) causes the first player character to make a pass to the second player character if it is determined that a position/positions of the first player character or/and the moving object and the position of the second player character satisfy a predetermined condition.Type: ApplicationFiled: June 3, 2009Publication date: June 9, 2011Applicant: KONAMI DIGITAL ENTERTAINMENT CO., LTD.Inventors: Toshiyuki Terada, Naoya Hatsumi, Hitoshi Otomo, Kenichi Akiyama, Motoki Kanematsu, Takeshi Okubo, Takashi Onishi, Yoshinori Shiigi
-
Publication number: 20100328292Abstract: A decoder circuit which outputs a voltage based on a 8-bit digital value includes: a first decoder circuit and a second decoder circuit which output one voltage respectively using upper-order 6 bits of the 8-bit digital value; a selection circuit which receives voltages outputted from the first decoder circuit and the second decoder circuit, and distributes the two voltages to three terminals; and an intermediate voltage output circuit which outputs an intermediate voltage which is a one of five kinds of values based on the three voltages. The first decoder circuit and the second decoder circuit respectively include a select-switch-type decoder circuit and a tournament-type decoder circuit. Due to such a constitution, it is possible to reduce a circuit scale of the decoder circuit which outputs the voltage corresponding to the 8-bit digital value.Type: ApplicationFiled: June 29, 2010Publication date: December 30, 2010Inventors: Kenichi AKIYAMA, Yoshihiro Kotani, Hiroko Sehata, Kouichi Kotera
-
Publication number: 20100245320Abstract: An object of the invention is to reduce the size of a decoder circuit of a display device. A decoder circuit which outputs voltages corresponding to 8-bit digital values includes a predecoder section, which includes an A decoder, B decoder, and C decoder, each of which is configured of a matrix type decoder circuit which carries out a three bits' worth of decoding, and a tournament type decoder circuit which carries out a three bits' worth of decoding, a selection circuit which, having input thereinto three voltages output respectively from the A decoder, B decoder, and C decoder, and applied to three output signal lines, selects two voltages of the three input voltages using a bit with one of the digital values and applies them to two output signal lines, and an intermediate voltage output circuit which, having input thereinto the two voltages selected by the selection circuit, outputs a voltage which is the average of the two voltages.Type: ApplicationFiled: February 5, 2010Publication date: September 30, 2010Inventors: Kenichi Akiyama, Yoshihiro Kotani, Shuuichirou Matsumoto