Patents by Inventor Shigeki Nagasaka
Shigeki Nagasaka 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).
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Publication number: 20230326535Abstract: A semiconductor device includes a memory circuit, a first FIFO, a second FIFO and an input/output circuit. The memory circuit outputs data. The first FIFO receives data from the memory circuit and outputs data synchronously with a first clock signal. The second FIFO receives data output from the first FIFO and outputs data synchronously with the first clock signal. The input/output circuit outputs data output from the second FIFO. The second FIFO is disposed in the vicinity of the input/output circuit than the first FIFO.Type: ApplicationFiled: June 13, 2023Publication date: October 12, 2023Applicant: KIOXIA CORPORATIONInventors: Shinya OKUNO, Shigeki NAGASAKA, Toshiyuki KOUCHI
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Publication number: 20230297239Abstract: A memory system includes a memory chip and a memory controller. The memory chip includes a storage region that stores setup data used for setup of the memory chip during power on thereof. The memory controller is configured to determine whether or not the memory controller has the setup data, when determining that the memory controller does not have the setup data, instruct the memory chip to read the setup data from the storage region and perform a first setup operation based on the read setup data, and when determining that the memory controller has the setup data, transmit the setup data to the memory chip and instruct the memory chip to perform a second setup operation based on the setup data received from the memory controller.Type: ApplicationFiled: August 29, 2022Publication date: September 21, 2023Inventors: Kenta SHIBASAKI, Yoshihiko SHINDO, Yasuhiro HIRASHIMA, Akio SUGAHARA, Shigeki NAGASAKA, Dai NAKAMURA, Yousuke HAGIWARA
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Patent number: 11715529Abstract: A semiconductor device includes a memory circuit, a first FIFO, a second FIFO and an input/output circuit. The memory circuit outputs data. The first FIFO receives data from the memory circuit and outputs data synchronously with a first clock signal. The second FIFO receives data output from the first FIFO and outputs data synchronously with the first clock signal. The input/output circuit outputs data output from the second FIFO. The second FIFO is disposed in the vicinity of the input/output circuit than the first FIFO.Type: GrantFiled: March 8, 2022Date of Patent: August 1, 2023Assignee: KIOXIA CORPORATIONInventors: Shinya Okuno, Shigeki Nagasaka, Toshiyuki Kouchi
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Publication number: 20220189563Abstract: A semiconductor device includes a memory circuit, a first FIFO, a second FIFO and an input/output circuit. The memory circuit outputs data. The first FIFO receives data from the memory circuit and outputs data synchronously with a first clock signal. The second FIFO receives data output from the first FIFO and outputs data synchronously with the first clock signal. The input/output circuit outputs data output from the second FIFO. The second FIFO is disposed in the vicinity of the input/output circuit than the first FIFO.Type: ApplicationFiled: March 8, 2022Publication date: June 16, 2022Applicant: KIOXIA CORPORATIONInventors: Shinya OKUNO, Shigeki NAGASAKA, Toshiyuki KOUCHI
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Patent number: 11295821Abstract: A semiconductor device includes a memory circuit, a first FIFO, a second FIFO and an input/output circuit. The memory circuit outputs data. The first FIFO receives data from the memory circuit and outputs data synchronously with a first clock signal. The second FIFO receives data output from the first FIFO and outputs data synchronously with the first clock signal. The input/output circuit outputs data output from the second FIFO. The second FIFO is disposed in the vicinity of the input/output circuit than the first FIFO.Type: GrantFiled: January 28, 2021Date of Patent: April 5, 2022Assignee: KIOXIA CORPORATIONInventors: Shinya Okuno, Shigeki Nagasaka, Toshiyuki Kouchi
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Patent number: 11270981Abstract: According to one embodiment, a memory device includes: a first chip including a first circuit, first and second terminals; a second chip including a second circuit and a third terminal; and an interface chip including first and second voltage generators. The first chip is between the second chip and the interface chip. The first terminal is connected between the first circuit and the first voltage generator. A third end of the second terminal is connected to the third terminal and a fourth end of the second terminal is connected to the second voltage generator. A fifth end of the third terminal is connected to the second circuit and a sixth end of the third terminal is connected to the second voltage generator via the second terminal. The third end overlaps with the sixth end, without overlapping with the fourth end.Type: GrantFiled: September 17, 2020Date of Patent: March 8, 2022Assignee: KIOXIA CORPORATIONInventors: Mikihiko Ito, Masaru Koyanagi, Masafumi Nakatani, Shinya Okuno, Shigeki Nagasaka, Masahiro Yoshihara, Akira Umezawa, Satoshi Tsukiyama, Kazushige Kawasaki
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Publication number: 20210151114Abstract: A semiconductor device includes a memory circuit, a first FIFO, a second FIFO and an input/output circuit. The memory circuit outputs data. The first FIFO receives data from the memory circuit and outputs data synchronously with a first clock signal. The second FIFO receives data output from the first FIFO and outputs data synchronously with the first clock signal. The input/output circuit outputs data output from the second FIFO. The second FIFO is disposed in the vicinity of the input/output circuit than the first FIFO.Type: ApplicationFiled: January 28, 2021Publication date: May 20, 2021Applicant: TOSHIBA MEMORY CORPORATIONInventors: Shinya OKUNO, Shigeki NAGASAKA, Toshiyuki KOUCHI
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Patent number: 10950314Abstract: A semiconductor device includes a memory circuit, a first FIFO, a second FIFO and an input/output circuit. The memory circuit outputs data. The first FIFO receives data from the memory circuit and outputs data synchronously with a first clock signal. The second FIFO receives data output from the first FIFO and outputs data synchronously with the first clock signal. The input/output circuit outputs data output from the second FIFO. The second FIFO is disposed in the vicinity of the input/output circuit than the first FIFO.Type: GrantFiled: March 12, 2020Date of Patent: March 16, 2021Assignee: TOSHIBA MEMORY CORPORATIONInventors: Shinya Okuno, Shigeki Nagasaka, Toshiyuki Kouchi
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Publication number: 20210005580Abstract: According to one embodiment, a memory device includes: a first chip including a first circuit, first and second terminals; a second chip including a second circuit and a third terminal; and an interface chip including first and second voltage generators. The first chip is between the second chip and the interface chip. The first terminal is connected between the first circuit and the first voltage generator. A third end of the second terminal is connected to the third terminal and a fourth end of the second terminal is connected to the second voltage generator. A fifth end of the third terminal is connected to the second circuit and a sixth end of the third terminal is connected to the second voltage generator via the second terminal. The third end overlaps with the sixth end, without overlapping with the fourth end.Type: ApplicationFiled: September 17, 2020Publication date: January 7, 2021Applicant: Toshiba Memory CorporationInventors: Mikihiko ITO, Masaru KOYANAGI, Masafumi NAKATANI, Shinya OKUNO, Shigeki NAGASAKA, Masahiro YOSHIHARA, Akira UMEZAWA, Satoshi TSUKIYAMA, Kazushige KAWASAKI
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Patent number: 10811393Abstract: According to one embodiment, a memory device includes: a first chip including a first circuit, first and second terminals; a second chip including a second circuit and a third terminal; and an interface chip including first and second voltage generators. The first chip is between the second chip and the interface chip. The first terminal is connected between the first circuit and the first voltage generator. A third end of the second terminal is connected to the third terminal and a fourth end of the second terminal is connected to the second voltage generator. A fifth end of the third terminal is connected to the second circuit and a sixth end of the third terminal is connected to the second voltage generator via the second terminal. The third end overlaps with the sixth end, without overlapping with the fourth end.Type: GrantFiled: March 11, 2019Date of Patent: October 20, 2020Assignee: Toshiba Memory CorporationInventors: Mikihiko Ito, Masaru Koyanagi, Masafumi Nakatani, Shinya Okuno, Shigeki Nagasaka, Masahiro Yoshihara, Akira Umezawa, Satoshi Tsukiyama, Kazushige Kawasaki
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Patent number: 10790266Abstract: According to one embodiment, a memory device includes: a first chip including a first circuit, first and second terminal; a second chip including a second circuit and a third terminal; and an interface chip including first and second voltage generators. The first chip is between the second chip and the interface chip. The first terminal is connected between the first circuit and the first voltage generator. A third end of the second terminal is connected to the third terminal and a fourth end of the second terminal is connected to the second voltage generator. A fifth end of the third terminal is connected to the second circuit and a sixth end of the third terminal is connected to the second voltage generator via the second terminal. The third end overlaps with the sixth end, without overlapping with the fourth end.Type: GrantFiled: March 11, 2019Date of Patent: September 29, 2020Assignee: Toshiba Memory CorporationInventors: Mikihiko Ito, Masaru Koyanagi, Masafumi Nakatani, Masahiro Yoshihara, Shinya Okuno, Shigeki Nagasaka
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Publication number: 20200211659Abstract: A semiconductor device includes a memory circuit, a first FIFO, a second FIFO and an input/output circuit. The memory circuit outputs data. The first FIFO receives data from the memory circuit and outputs data synchronously with a first clock signal. The second FIFO receives data output from the first FIFO and outputs data synchronously with the first clock signal. The input/output circuit outputs data output from the second FIFO. The second FIFO is disposed in the vicinity of the input/output circuit than the first FIFO.Type: ApplicationFiled: March 12, 2020Publication date: July 2, 2020Applicant: TOSHIBA MEMORY CORPORATIONInventors: Shinya OKUNO, Shigeki NAGASAKA, Toshiyuki KOUCHI
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Patent number: 10636499Abstract: A semiconductor device includes a memory circuit, a first FIFO, a second FIFO and an input/output circuit. The memory circuit outputs data. The first FIFO receives data from the memory circuit and outputs data synchronously with a first clock signal. The second FIFO receives data output from the first FIFO and outputs data synchronously with the first clock signal. The input/output circuit outputs data output from the second FIFO. The second FIFO is disposed in the vicinity of the input/output circuit than the first FIFO.Type: GrantFiled: May 24, 2019Date of Patent: April 28, 2020Assignee: TOSHIBA MEMORY CORPORATIONInventors: Shinya Okuno, Shigeki Nagasaka, Toshiyuki Kouchi
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Patent number: 10438670Abstract: A semiconductor device includes a memory circuit, a first FIFO, a second FIFO and an input/output circuit. The memory circuit outputs data. The first FIFO receives data from the memory circuit and outputs data synchronously with a first clock signal. The second FIFO receives data output from the first FIFO and outputs data synchronously with the first clock signal. The input/output circuit outputs data output from the second FIFO. The second FIFO is disposed in the vicinity of the input/output circuit than the first FIFO.Type: GrantFiled: June 15, 2018Date of Patent: October 8, 2019Assignee: TOSHIBA MEMORY CORPORATIONInventors: Shinya Okuno, Shigeki Nagasaka, Toshiyuki Kouchi
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Publication number: 20190279727Abstract: A semiconductor device includes a memory circuit, a first FIFO, a second FIFO and an input/output circuit. The memory circuit outputs data. The first FIFO receives data from the memory circuit and outputs data synchronously with a first clock signal. The second FIFO receives data output from the first FIFO and outputs data synchronously with the first clock signal. The input/output circuit outputs data output from the second FIFO. The second FIFO is disposed in the vicinity of the input/output circuit than the first FIFO.Type: ApplicationFiled: May 24, 2019Publication date: September 12, 2019Applicant: TOSHIBA MEMORY CORPORATIONInventors: Shinya OKUNO, Shigeki NAGASAKA, Toshiyuki KOUCHI
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Patent number: 10381092Abstract: A semiconductor device includes a memory circuit, a first FIFO, a second FIFO and an input/output circuit. The memory circuit outputs data. The first FIFO receives data from the memory circuit and outputs data synchronously with a first clock signal. The second FIFO receives data output from the first FIFO and outputs data synchronously with the first clock signal. The input/output circuit outputs data output from the second FIFO. The second FIFO is disposed in the vicinity of the input/output circuit than the first FIFO.Type: GrantFiled: June 15, 2018Date of Patent: August 13, 2019Assignee: TOSHIBA MEMORY CORPORATIONInventors: Shinya Okuno, Shigeki Nagasaka, Toshiyuki Kouchi
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Publication number: 20190206495Abstract: According to one embodiment, a memory device includes: a first chip including a first circuit, first and second terminal; a second chip including a second circuit and a third terminal; and an interface chip including first and second voltage generators. The first chip is between the second chip and the interface chip. The first terminal is connected between the first circuit and the first voltage generator. A third end of the second terminal is connected to the third terminal and a fourth end of the second terminal is connected to the second voltage generator. A fifth end of the third terminal is connected to the second circuit and a sixth end of the third terminal is connected to the second voltage generator via the second terminal. The third end overlaps with the sixth end, without overlapping with the fourth end.Type: ApplicationFiled: March 11, 2019Publication date: July 4, 2019Applicant: Toshiba Memory CorporationInventors: Mikihiko ITO, Masaru KOYANAGI, Masafumi NAKATANI, Masahiro YOSHIHARA, Shinya OKUNO, Shigeki NAGASAKA
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Publication number: 20190206845Abstract: According to one embodiment, a memory device includes: a first chip including a first circuit, first and second terminals; a second chip including a second circuit and a third terminal; and an interface chip including first and second voltage generators. The first chip is between the second chip and the interface chip. The first terminal is connected between the first circuit and the first voltage generator. A third end of the second terminal is connected to the third terminal and a fourth end of the second terminal is connected to the second voltage generator. A fifth end of the third terminal is connected to the second circuit and a sixth end of the third terminal is connected to the second voltage generator via the second terminal. The third end overlaps with the sixth end, without overlapping with the fourth end.Type: ApplicationFiled: March 11, 2019Publication date: July 4, 2019Applicant: Toshiba Memory CorporationInventors: Mikihiko ITO, Masaru Koyanagi, Masafumi Nakatani, Shinya Okuno, Shigeki Nagasaka, Masahiro Yoshihara, Akira Umezawa, Satoshi Tsukiyama, Kazushige Kawasaki
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Publication number: 20180294038Abstract: A semiconductor device includes a memory circuit, a first FIFO, a second FIFO and an input/output circuit. The memory circuit outputs data. The first FIFO receives data from the memory circuit and outputs data synchronously with a first clock signal. The second FIFO receives data output from the first FIFO and outputs data synchronously with the first clock signal. The input/output circuit outputs data output from the second FIFO. The second FIFO is disposed in the vicinity of the input/output circuit than the first FIFO.Type: ApplicationFiled: June 15, 2018Publication date: October 11, 2018Applicant: TOSHIBA MEMORY CORPORATIONInventors: Shinya OKUNO, Shigeki NAGASAKA, Toshiyuki KOUCHI
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Patent number: 10026485Abstract: A semiconductor device includes a memory circuit, a first FIFO, a second FIFO and an input/output circuit. The memory circuit outputs data. The first FIFO receives data from the memory circuit and outputs data synchronously with a first clock signal. The second FIFO receives data output from the first FIFO and outputs data synchronously with the first clock signal. The input/output circuit outputs data output from the second FIFO. The second FIFO is disposed in the vicinity of the input/output circuit than the first FIFO.Type: GrantFiled: August 7, 2017Date of Patent: July 17, 2018Assignee: TOSHIBA MEMORY CORPORATIONInventors: Shinya Okuno, Shigeki Nagasaka, Toshiyuki Kouchi