Patents by Inventor Yoshiaki Oikawa

Yoshiaki Oikawa 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).

  • Publication number: 20210257015
    Abstract: A semiconductor device that enables lower power consumption and data storage imitating a human brain is provided. The semiconductor device includes a control unit, a memory unit, and a sensor unit. The memory unit includes a memory circuit and a switching circuit. The memory circuit includes a first transistor and a capacitor. The switching circuit includes a second transistor and a third transistor. The first transistor and the second transistor include a semiconductor layer including a channel formation region with an oxide semiconductor, and a back gate electrode. The control unit has a function of switching a signal supplied to the back gate electrode, in accordance with a signal obtained at the sensor unit.
    Type: Application
    Filed: May 31, 2019
    Publication date: August 19, 2021
    Inventors: Shunpei YAMAZAKI, Hajime KIMURA, Atsushi MIYAGUCHI, Yoshiaki OIKAWA
  • Patent number: 11094360
    Abstract: A novel storage device is provided. The storage device includes a first wiring, a second wiring, and a first memory cell. The first memory cell includes a first transistor and a first magnetic tunnel junction device. One of a source or a drain of the first transistor is electrically connected to a first wiring. The other of the source or the drain of the first transistor is electrically connected to one terminal of the first magnetic tunnel junction device. Another terminal of the first magnetic tunnel junction device is electrically connected to the second wiring. The first transistor includes an oxide semiconductor in its channel formation region.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: August 17, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiaki Oikawa, Atsushi Miyaguchi, Hideki Uochi
  • Publication number: 20210241781
    Abstract: Compensation accuracy is increased with respect to clip compensation in a case where signals from a plurality of microphones are subjected to an echo cancellation process. A signal processing device according to an embodiment of the present technology includes an echo cancellation unit that performs an echo cancellation process of canceling an output signal component from a speaker on signals from a plurality of microphones, a clip detection unit that performs a clip detection for signals from the plurality of microphones, and a clip compensation unit that compensates for a signal after the echo cancellation process of clipped one of the microphones on the basis of a signal of non-clipped one of the microphones.
    Type: Application
    Filed: April 22, 2019
    Publication date: August 5, 2021
    Applicant: Sony Corporation
    Inventors: Kazuya Tateishi, Shusuke Takahashi, Akira Takahashi, Kazuki Ochiai, Yoshiaki Oikawa
  • Publication number: 20210210108
    Abstract: The present technology relates to a coding device, a coding method, a decoding device, a decoding method, and a program capable of improving coding efficiency. The coding device includes a time-frequency transform section that performs time-frequency transform using a transform window on an audio signal, and a coding section that performs Huffman coding on frequency spectrum information obtained by the time-frequency transform in a case in which a transform window length of the transform window is changed over from a small transform window length to a large transform window length, and that performs arithmetic coding on the frequency spectrum information in a case in which the transform window length of the transform window is not changed over from the small transform window length to the large transform window length. The present technology is applicable to a coding device and a decoding device.
    Type: Application
    Filed: June 7, 2019
    Publication date: July 8, 2021
    Applicant: Sony Corporation
    Inventors: Akifumi Kono, Toru Chinen, Hiroyuki Honma, Yoshiaki Oikawa
  • Patent number: 11038065
    Abstract: The transistor includes a first gate electrode, a first insulating film over the first gate electrode, an oxide semiconductor film over the first insulating film, a source electrode over the oxide semiconductor film, a drain electrode over the oxide semiconductor film, a second insulating film over the oxide semiconductor film, the source electrode, and the drain electrode, and a second gate electrode over the second insulating film. The first insulating film includes a first opening. A connection electrode electrically connected to the first gate electrode through the first opening is formed over the first insulating film. The second insulating film includes a second opening that reaches the connection electrode. The second gate electrode includes an oxide conductive film and a metal film over the oxide conductive film. The connection electrode and the second gate electrode are electrically connected to each other through the metal film.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: June 15, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiaki Oikawa, Nobuharu Ohsawa, Masami Jintyou, Yasutaka Nakazawa
  • Publication number: 20210175256
    Abstract: The semiconductor device includes a driver circuit portion including a driver circuit and a pixel portion including a pixel. The pixel includes a gate electrode layer having a light-transmitting property, a gate insulating layer, a source electrode layer and a drain electrode layer each having a light-transmitting property provided over the gate insulating layer, an oxide semiconductor layer covering top surfaces and side surfaces of the source electrode layer and the drain electrode layer and provided over the gate electrode layer with the gate insulating layer therebetween, a conductive layer provided over part of the oxide semiconductor layer and having a lower resistance than the source electrode layer and the drain electrode layer, and an oxide insulating layer in contact with part of the oxide semiconductor layer.
    Type: Application
    Filed: November 27, 2020
    Publication date: June 10, 2021
    Inventors: Masayuki SAKAKURA, Yoshiaki OIKAWA, Shunpei YAMAZAKI, Junichiro SAKATA, Masashi TSUBUKU, Kengo AKIMOTO, Miyuki HOSOBA
  • Patent number: 11024747
    Abstract: An object is to improve reliability of a light-emitting device. A light-emitting device has a driver circuit portion including a transistor for a driver circuit and a pixel portion including a transistor for a pixel over one substrate. The transistor for the driver circuit and the transistor for the pixel are inverted staggered transistors each including an oxide semiconductor layer in contact with part of an oxide insulating layer. In the pixel portion, a color filter layer and a light-emitting element are provided over the oxide insulating layer. In the transistor for the driver circuit, a conductive layer overlapping with a gate electrode layer and the oxide semiconductor layer is provided over the oxide insulating layer. The gate electrode layer, a source electrode layer, and a drain electrode layer are formed using metal conductive films.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: June 1, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Junichiro Sakata, Masayuki Sakakura, Yoshiaki Oikawa, Kenichi Okazaki, Hotaka Maruyama
  • Patent number: 11024516
    Abstract: An object is to provide a display device with excellent display characteristics, where a pixel circuit and a driver circuit provided over one substrate are formed using transistors which have different structures corresponding to characteristics of the respective circuits. The driver circuit portion includes a driver circuit transistor in which a gate electrode layer, a source electrode layer, and a drain electrode layer are formed using a metal film, and a channel layer is formed using an oxide semiconductor. The pixel portion includes a pixel transistor in which a gate electrode layer, a source electrode layer, and a drain electrode layer are formed using an oxide conductor, and a semiconductor layer is formed using an oxide semiconductor. The pixel transistor is formed using a light-transmitting material, and thus, a display device with higher aperture ratio can be manufactured.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: June 1, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Junichiro Sakata, Masashi Tsubuku, Kengo Akimoto, Miyuki Hosoba, Masayuki Sakakura, Yoshiaki Oikawa
  • Publication number: 20210152968
    Abstract: The present technology relates to an information processing apparatus, a method, and a program that can create a great sense of realism with a small number of computations. An information processing apparatus includes a gain determination section that determines an attenuation level on the basis of a positional relationship between a given object and another object and determines a gain of a signal of the given object on the basis of the attenuation level. The present technology is applicable to a signal processing apparatus.
    Type: Application
    Filed: March 26, 2019
    Publication date: May 20, 2021
    Applicant: Sony Corporation
    Inventors: Hiroyuki Honma, Toru Chinen, Yoshiaki Oikawa
  • Publication number: 20210111196
    Abstract: A high-definition display device is provided. A display device with low power consumption is provided. A highly reliable display device is provided. The display device includes a first transistor and a display element electrically connected to the first transistor. The first transistor includes a first oxide, a second oxide, a first conductor, a second conductor, a third conductor, a first insulator, and a second insulator. The first conductor and the second conductor are positioned over the first oxide to be apart from each other. The first insulator is positioned over the first conductor and the second conductor and includes an opening. The opening overlaps with a portion between the first conductor and the second conductor. The third conductor is positioned in the opening. The second insulator is positioned between the third conductor, and the first oxide, the first conductor, the second conductor, and the first insulator.
    Type: Application
    Filed: January 28, 2019
    Publication date: April 15, 2021
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei YAMAZAKI, Koji KUSUNOKI, Yoshiaki OIKAWA, Kensuke YOSHIZUMI
  • Publication number: 20210074862
    Abstract: An object is to improve reliability of a light-emitting device. A light-emitting device has a driver circuit portion including a transistor for a driver circuit and a pixel portion including a transistor for a pixel over one substrate. The transistor for the driver circuit and the transistor for the pixel are inverted staggered transistors each including an oxide semiconductor layer in contact with part of an oxide insulating layer. In the pixel portion, a color filter layer and a light-emitting element are provided over the oxide insulating layer. In the transistor for the driver circuit, a conductive layer overlapping with a gate electrode layer and the oxide semiconductor layer is provided over the oxide insulating layer. The gate electrode layer, a source electrode layer, and a drain electrode layer are formed using metal conductive films.
    Type: Application
    Filed: October 29, 2020
    Publication date: March 11, 2021
    Inventors: Shunpei YAMAZAKI, Junichiro SAKATA, Masayuki SAKAKURA, Yoshiaki OIKAWA, Kenichi OKAZAKI, Hotaka MARUYAMA
  • Publication number: 20210066507
    Abstract: A semiconductor device with high on-state current is provided.
    Type: Application
    Filed: January 15, 2019
    Publication date: March 4, 2021
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei YAMAZAKI, Kenichi OKAZAKI, Yoshiaki OIKAWA
  • Publication number: 20210011956
    Abstract: An information search system or an intellectual property information search system that is capable of highly accurate information search is provided. The intellectual property information search system includes a processing unit. First data and first reference analysis data are input to the processing unit. The first data includes first intellectual property information. The first reference analysis data includes plural pieces of second intellectual property information. The processing unit is configured to search the first reference analysis data for data similar to the first data to generate second data. The processing unit is configured to output the second data. The second data includes a piece of the second intellectual property information similar to the first intellectual property information and information showing the degree of similarity of the piece of the second intellectual property information to the first intellectual property information.
    Type: Application
    Filed: September 28, 2020
    Publication date: January 14, 2021
    Inventors: Shunpei YAMAZAKI, Yuji IWAKI, Hajime KIMURA, Yoshiaki OIKAWA, Natsuko TAKASE
  • Patent number: 10854640
    Abstract: The semiconductor device includes a driver circuit portion including a driver circuit and a pixel portion including a pixel. The pixel includes a gate electrode layer having a light-transmitting property, a gate insulating layer, a source electrode layer and a drain electrode layer each having a light-transmitting property provided over the gate insulating layer, an oxide semiconductor layer covering top surfaces and side surfaces of the source electrode layer and the drain electrode layer and provided over the gate electrode layer with the gate insulating layer therebetween, a conductive layer provided over part of the oxide semiconductor layer and having a lower resistance than the source electrode layer and the drain electrode layer, and an oxide insulating layer in contact with part of the oxide semiconductor layer.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: December 1, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masayuki Sakakura, Yoshiaki Oikawa, Shunpei Yamazaki, Junichiro Sakata, Masashi Tsubuku, Kengo Akimoto, Miyuki Hosoba
  • Publication number: 20200344550
    Abstract: The present technology relates to a signal processing device, a signal processing method, and a program that enable different sounds to be reproduced in a remote location and a neighboring location. A signal processing device includes: a remote filter unit configured to generate a remote sound reproduction signal for reproducing a sound in a remote audible region, by performing filter processing on a first sound source signal using a remote sound reproduction filter coefficient; and a neighboring filter unit configured to generate a neighboring sound reproduction signal for reproducing a sound in a neighboring audible region that is different from the remote audible region, by performing filter processing on a second sound source signal using a neighboring sound reproduction filter coefficient. The present technology can be applied to a remote-neighborhood separate sound field formation device.
    Type: Application
    Filed: July 14, 2020
    Publication date: October 29, 2020
    Applicant: Sony Corporation
    Inventors: Yu Maeno, Yuhki Mitsufuji, Yoshiaki Oikawa
  • Publication number: 20200292998
    Abstract: A convenient electronic device is provided. An electronic device from which a user can easily read the displayed data is provided. The user can read data with a small motion. A housing of the electronic device includes a first portion positioned on a front surface of the housing, a second portion positioned on a side surface of the housing, a first band attachment portion, and a second band attachment portion. The second portion is configured to display an image. The first band attachment portion is positioned on the side surface on the top side when seen from the front surface side of the housing. The second portion and the second band attachment portion are positioned on the side surface on the bottom side when seen from the front surface side of the housing. The first portion is configured to display an image or includes at least one of an hour hand, a minute hand, and a second hand.
    Type: Application
    Filed: February 25, 2020
    Publication date: September 17, 2020
    Applicant: Semiconductor Energy Laboratory Co., Ltd
    Inventors: Kensuke Yoshizumi, Yoshiaki Oikawa
  • Publication number: 20200279595
    Abstract: A novel storage device is provided. The storage device includes a first wiring, a second wiring, and a first memory cell. The first memory cell includes a first transistor and a first magnetic tunnel junction device. One of a source or a drain of the first transistor is electrically connected to a first wiring. The other of the source or the drain of the first transistor is electrically connected to one terminal of the first magnetic tunnel junction device. Another terminal of the first magnetic tunnel junction device is electrically connected to the second wiring. The first transistor includes an oxide semiconductor in its channel formation region.
    Type: Application
    Filed: October 2, 2018
    Publication date: September 3, 2020
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Yoshiaki OIKAWA, Atsushi MIYAGUCHI, Hideki UOCHI
  • Patent number: 10757505
    Abstract: The present technology relates to a signal processing device, a signal processing method, and a program that enable different sounds to be reproduced in a remote location and a neighboring location. A signal processing device includes: a remote filter unit configured to generate a remote sound reproduction signal for reproducing a sound in a remote audible region, by performing filter processing on a first sound source signal using a remote sound reproduction filter coefficient; and a neighboring filter unit configured to generate a neighboring sound reproduction signal for reproducing a sound in a neighboring audible region that is different from the remote audible region, by performing filter processing on a second sound source signal using a neighboring sound reproduction filter coefficient. The present technology can be applied to a remote-neighborhood separate sound field formation device.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: August 25, 2020
    Assignee: Sony Corporation
    Inventors: Yu Maeno, Yuhki Mitsufuji, Yoshiaki Oikawa
  • Publication number: 20200220029
    Abstract: An object is to improve reliability of a light-emitting device. A light-emitting device has a driver circuit portion including a transistor for a driver circuit and a pixel portion including a transistor for a pixel over one substrate. The transistor for the driver circuit and the transistor for the pixel are inverted staggered transistors each including an oxide semiconductor layer in contact with part of an oxide insulating layer. In the pixel portion, a color filter layer and a light-emitting element are provided over the oxide insulating layer. In the transistor for the driver circuit, a conductive layer overlapping with a gate electrode layer and the oxide semiconductor layer is provided over the oxide insulating layer. The gate electrode layer, a source electrode layer, and a drain electrode layer are formed using metal conductive films.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Inventors: Shunpei YAMAZAKI, Junichiro SAKATA, Masayuki SAKAKURA, Yoshiaki OIKAWA, Kenichi OKAZAKI, Hotaka MARUYAMA
  • Patent number: 10672915
    Abstract: An object is to improve reliability of a light-emitting device. A light-emitting device has a driver circuit portion including a transistor for a driver circuit and a pixel portion including a transistor for a pixel over one substrate. The transistor for the driver circuit and the transistor for the pixel are inverted staggered transistors each including an oxide semiconductor layer in contact with part of an oxide insulating layer. In the pixel portion, a color filter layer and a light-emitting element are provided over the oxide insulating layer. In the transistor for the driver circuit, a conductive layer overlapping with a gate electrode layer and the oxide semiconductor layer is provided over the oxide insulating layer. The gate electrode layer, a source electrode layer, and a drain electrode layer are formed using metal conductive films.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: June 2, 2020
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Junichiro Sakata, Masayuki Sakakura, Yoshiaki Oikawa, Kenichi Okazaki, Hotaka Maruyama