Patents by Inventor Tadashi Kai
Tadashi Kai 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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Patent number: 11574827Abstract: A substrate processing apparatus includes: a processing unit including a holder that holds a substrate and rotates the substrate, a nozzle that ejects a processing liquid, and a conductive piping unit that supplies the processing liquid to the nozzle; a controller that causes the processing unit to execute a liquid processing in which the substrate is processed by supplying the processing liquid from the nozzle to the substrate that is held and rotated by the holder, and a measuring unit that measures a flowing current generated by the processing liquid flowing through the piping unit. The controller monitors the liquid processing based on a measurement result by the measuring unit.Type: GrantFiled: August 17, 2018Date of Patent: February 7, 2023Assignee: TOKYO ELECTRON LIMITEDInventors: Tadashi Iino, Yoshihiro Kai, Yoichi Tokunaga, Nobuhiro Ogata, Jiro Higashijima
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Patent number: 11550239Abstract: Provided is a powder container having a new structure capable of stable discharge and transport of a powder contained in a container by enabling the powder to be reliably discharged to the outside of the package while preventing the powder from spilling and flying out of the container.Type: GrantFiled: February 8, 2022Date of Patent: January 10, 2023Assignee: RICOH COMPANY, LTD.Inventors: Junichi Matsumoto, Tsukuru Kai, Hiroshi Hosokawa, Makoto Komatsu, Tadashi Hayakawa, Yuzuru Ozawa
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Patent number: 11502125Abstract: A magnetoresistive memory device according to one embodiment includes: first and second layer stacks, each of which includes: a first ferromagnetic layer having a magnetization directed in a first direction; a non-magnetic first conductive layer above the first ferromagnetic layer, a second ferromagnetic layer provided above the first conductive layer and having a magnetization directed in a second direction different from the first direction, a first insulating layer on an upper surface of the second ferromagnetic layer, and a third ferromagnetic layer above the first insulating layer. The second ferromagnetic layer of the second layer stack is thicker than the second ferromagnetic layer of the first layer stack.Type: GrantFiled: March 12, 2020Date of Patent: November 15, 2022Assignee: KIOXIA CORPORATIONInventors: Masaru Toko, Tadaomi Daibou, Junichi Ito, Taichi Igarashi, Tadashi Kai
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Patent number: 11467516Abstract: The powder container includes a container body containing a powder for image formation, the powder being to be supplied to a powder replenishing device; a conveyor configured to convey the powder from one end in a longitudinal direction to the other end at which a cylindrical container opening is formed, the conveyor being provided inside the container body; a gear configured to rotate the conveyor with an external driving force; a container cover configured to cover the gear, the container cover having a gear exposing hole for partially exposing a gear tooth; and a nozzle receiver configured to guide the conveying nozzle inside of the container body, the nozzle receiver being provided on the container opening. The container cover includes a container engaged portion provided outer than the tooth of the gear in a radial direction.Type: GrantFiled: December 4, 2020Date of Patent: October 11, 2022Assignee: RICOH COMPANY, LTD.Inventors: Hiroshi Hosokawa, Tsukuru Kai, Junichi Matsumoto, Makoto Komatsu, Tadashi Hayakawa, Yuzuru Ozawa, Shinji Tamaki, Kenji Kikuchi
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Publication number: 20220278168Abstract: A nonvolatile storage device includes first interconnections extending in a first direction and second interconnections extending in a second direction intersecting the first direction. Memory cells are formed at intersections between first and second interconnections. Each memory cell includes a resistance change element and a selector. In the arrangement of memory cells, all memory cells that are connected to any particular first interconnection are aligned along that first interconnection, and all memory cells connected to any particular second interconnection are alternately staggered in the first direction across a width of that second interconnection.Type: ApplicationFiled: May 20, 2022Publication date: September 1, 2022Inventors: Masahiko NAKAYAMA, Kazumasa SUNOUCHI, Gaku SUDO, Tadashi KAI
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Patent number: 11367748Abstract: A nonvolatile storage device includes first interconnections extending in a first direction and second interconnections extending in a second direction intersecting the first direction. Memory cells are formed at intersections between first and second interconnections. Each memory cell includes a resistance change element and a selector. In the arrangement of memory cells, all memory cells that are connected to any particular first interconnection are aligned along that first interconnection, and all memory cells connected to any particular second interconnection are alternately staggered in the first direction across a width of that second interconnection.Type: GrantFiled: March 19, 2021Date of Patent: June 21, 2022Assignee: KIOXIA CORPORATIONInventors: Masahiko Nakayama, Kazumasa Sunouchi, Gaku Sudo, Tadashi Kai
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Patent number: 11355694Abstract: According to one embodiment, a magnetic memory device includes a stacked structure including a first magnetic layer having a variable magnetization direction, a second magnetic layer having a fixed magnetization direction, and a nonmagnetic layer provided between the first magnetic layer and the second magnetic layer, and containing magnesium (Mg) and oxygen (O). The nonmagnetic layer further contains an additive element selected from fluorine (F), sulfur (S), hydrogen (H) and lithium (Li).Type: GrantFiled: September 13, 2019Date of Patent: June 7, 2022Assignee: KIOXIA CORPORATIONInventors: Tadaomi Daibou, Yasushi Nakasaki, Tadashi Kai, Hiroki Kawai, Takamitsu Ishihara, Junichi Ito
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Patent number: 11316101Abstract: A stack of the embodiment includes: a first magnetic substance; a second magnetic substance; and a first nonmagnetic substance which is disposed between the first magnetic substance and the second magnetic substance and contains at least one first metal element (M1) selected from the group consisting of ruthenium (Ru) and osmium (Os) and at least one second metal element (M2) selected from the group consisting of rhodium (Rh) and iridium (Ir). A magnetic device of the embodiment includes: a third magnetic substance; the stack; and a second nonmagnetic substance which is disposed between the third magnetic substance and the stack.Type: GrantFiled: March 5, 2020Date of Patent: April 26, 2022Assignee: KIOXIA CORPORATIONInventors: Rina Nomoto, Takayuki Tsukagoshi, Yasushi Nakasaki, Masaru Toko, Tadashi Kai, Takamitsu Ishihara
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Patent number: 11316097Abstract: According to one embodiment, a memory device includes a first wiring extending in a first direction, and a second wiring extending in a second direction that intersects the first direction. A memory cell is between the first wiring and the second wiring and includes a resistive memory element and a switching element that are connected in series between the first wiring and the second wiring. An insulating region surrounds side surfaces of the memory cell. The insulating region includes a first insulating part adjacent to a side surface of the resistive memory element and a second insulating part adjacent to a side surface of the switching element. The second insulating part has a higher thermal conductivity than the first insulating part.Type: GrantFiled: August 26, 2020Date of Patent: April 26, 2022Assignee: KIOXIA CORPORATIONInventors: Taichi Igarashi, Tadaomi Daibou, Junichi Ito, Tadashi Kai, Shogo Itai, Toshiyuki Enda
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Publication number: 20220013579Abstract: According to one embodiment, a magnetic memory device including a stacked structure including a first magnetic layer having a variable magnetization direction, a second magnetic layer having a fixed magnetization direction, and a nonmagnetic layer provided between the first magnetic layer and the second magnetic layer, and containing magnesium (Mg) and oxygen (O). The nonmagnetic layer further contains a first additive element and a second additive element, the first additive element is at least one element selected from sulfur (S), gallium (Ga), aluminum (Al), titanium (Ti), vanadium (V), hydrogen (H), fluorine (F), manganese (Mg), lithium (Li), nitrogen (N) and magnesium (Mg), and the second additive element is lithium (Li).Type: ApplicationFiled: September 23, 2021Publication date: January 13, 2022Applicant: Kioxia CorporationInventors: Tadaomi DAIBOU, Yasushi NAKASAKI, Tadashi KAI, Hiroki KAWAI, Takamitsu ISHIHARA, Junichi ITO
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Patent number: 11171175Abstract: According to one embodiment, a magnetic device includes a stacked body including a first magnetic layer, a second magnetic layer, and a non-magnetic layer between the first magnetic layer and the second magnetic layer. The stacked body has a quadrangular planar shape, the stacked body has a first side dimension in a first direction parallel to a surface of a substrate and a thickness in a second direction perpendicular to the surface of the substrate, and a ratio of the first side dimension to the thickness is in a range of 0.10 to 4.0.Type: GrantFiled: August 30, 2019Date of Patent: November 9, 2021Assignee: TOSHIBA MEMORY CORPORATIONInventors: Tadashi Kai, Masahiko Nakayama, Jyunichi Ozeki, Shogo Itai
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Publication number: 20210335888Abstract: A magnetic memory device including a first memory cell which includes a first stacked structure including a magnetic layer and a second memory cell which is provided on the first memory cell and includes a second stacked structure including a magnetic layer. Each of the first stacked structure and the second stacked structure includes a first magnetic layer having a variable magnetization direction, a second magnetic layer having a fixed magnetization direction, and a nonmagnetic layer provided between the first magnetic layer and the second magnetic layer. A concentration of iron (Fe) contained in the first magnetic layer included in the first stacked structure and a concentration of iron (Fe) contained in the first magnetic layer included in the second stacked structure are different from each other.Type: ApplicationFiled: July 9, 2021Publication date: October 28, 2021Applicant: TOSHIBA MEMORY CORPORATIONInventors: Masayoshi IWAYAMA, Tatsuya KISHI, Masahiko NAKAYAMA, Toshihiko NAGASE, Daisuke WATANABE, Tadashi KAI
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Patent number: 11133456Abstract: According to one embodiment, a magnetic storage device includes: a magnetoresistive effect element including a non-magnet, and a stacked structure on the non-magnet, the stacked structure including: a first ferromagnet on the non-magnet; an anti-ferromagnet being exchange-coupled with the first ferromagnet; and a second ferromagnet between the first ferromagnet and the anti-ferromagnet. The stacked structure is configured to: have a first resistance value in response to a first current flowing through the stacked structure in a first direction, and have a second resistance value different from the first resistance value in response to a second current flowing through the stacked structure in a second direction opposite to the first direction.Type: GrantFiled: March 13, 2019Date of Patent: September 28, 2021Assignee: TOSHIBA MEMORY CORPORATIONInventors: Takeshi Iwasaki, Akiyuki Murayama, Tadashi Kai, Tadaomi Daibou, Masaki Endo, Shumpei Omine, Taichi Igarashi, Junichi Ito
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Publication number: 20210296568Abstract: According to one embodiment, a memory device includes a first wiring extending in a first direction, and a second wiring extending in a second direction that intersects the first direction. A memory cell is between the first wiring and the second wiring and includes a resistive memory element and a switching element that are connected in series between the first wiring and the second wiring. An insulating region surrounds side surfaces of the memory cell. The insulating region includes a first insulating part adjacent to a side surface of the resistive memory element and a second insulating part adjacent to a side surface of the switching element. The second insulating part has a higher thermal conductivity than the first insulating part.Type: ApplicationFiled: August 26, 2020Publication date: September 23, 2021Inventors: Taichi IGARASHI, Tadaomi DAIBOU, Junichi ITO, Tadashi KAI, Shogo ITAI, Toshiyuki ENDA
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Patent number: 11094743Abstract: According to one embodiment, a magnetic memory device includes a first memory cell which includes a first stacked structure including a magnetic layer, and a second memory cell which is provided on the first memory cell and includes a second stacked structure including a magnetic layer, wherein each of the first stacked structure and the second stacked structure has a structure in which a plurality of layers including a predetermined layer are stacked, and the predetermined layer included in the first stacked structure and the predetermined layer included in the second stacked structure have different thicknesses.Type: GrantFiled: March 14, 2019Date of Patent: August 17, 2021Assignee: TOSHIBA MEMORY CORPORATIONInventors: Masayoshi Iwayama, Tatsuya Kishi, Masahiko Nakayama, Toshihiko Nagase, Daisuke Watanabe, Tadashi Kai
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Publication number: 20210210549Abstract: A nonvolatile storage device includes first interconnections extending in a first direction and second interconnections extending in a second direction intersecting the first direction. Memory cells are formed at intersections between first and second interconnections. Each memory cell includes a resistance change element and a selector. In the arrangement of memory cells, all memory cells that are connected to any particular first interconnection are aligned along that first interconnection, and all memory cells connected to any particular second interconnection are alternately staggered in the first direction across a width of that second interconnection.Type: ApplicationFiled: March 19, 2021Publication date: July 8, 2021Inventors: Masahiko NAKAYAMA, Kazumasa SUNOUCHI, Gaku SUDO, Tadashi KAI
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Patent number: 10985209Abstract: A nonvolatile storage device includes first interconnections extending in a first direction and second interconnections extending in a second direction intersecting the first direction. Memory cells are formed at intersections between first and second interconnections. Each memory cell includes a resistance change element and a selector. In the arrangement of memory cells, all memory cells that are connected to any particular first interconnection are aligned along that first interconnection, and all memory cells connected to any particular second interconnection are alternately staggered in the first direction across a width of that second interconnection.Type: GrantFiled: September 3, 2019Date of Patent: April 20, 2021Assignee: TOSHIBA MEMORY CORPORATIONInventors: Masahiko Nakayama, Kazumasa Sunouchi, Gaku Sudo, Tadashi Kai
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Patent number: 10978636Abstract: According to one embodiment, a storage device includes a magnetoresistive effect element comprising a nonmagnetic layer and a stacked body on the nonmagnetic layer. The stacked body includes a first ferromagnetic layer on the nonmagnetic layer, a second ferromagnetic layer exchange-coupled with the first ferromagnetic layer, and a magnetic layer between the first ferromagnetic layer and the second ferromagnetic layer. The magnetic layer includes a magnetic material and at least one compound selected from among a carbide, a nitride, and a boride.Type: GrantFiled: March 1, 2019Date of Patent: April 13, 2021Assignee: TOSHIBA MEMORY CORPORATIONInventors: Takeshi Iwasaki, Akiyuki Murayama, Tadashi Kai, Tadaomi Daibou, Masaki Endo, Shumpei Omine, Taichi Igarashi, Junichi Ito
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Publication number: 20210082999Abstract: A magnetoresistive memory device according to one embodiment includes: first and second layer stacks, each of which includes: a first ferromagnetic layer having a magnetization directed in a first direction; a non-magnetic first conductive layer above the first ferromagnetic layer, a second ferromagnetic layer provided above the first conductive layer and having a magnetization directed in a second direction different from the first direction, a first insulating layer on an upper surface of the second ferromagnetic layer, and a third ferromagnetic layer above the first insulating layer. The second ferromagnetic layer of the second layer stack is thicker than the second ferromagnetic layer of the first layer stack.Type: ApplicationFiled: March 12, 2020Publication date: March 18, 2021Applicant: KIOXIA CORPORATIONInventors: Masaru TOKO, Tadaomi DAIBOU, Junichi ITO, Taichi IGARASHI, Tadashi KAI
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Publication number: 20200403150Abstract: A stack of the embodiment includes: a first magnetic substance; a second magnetic substance; and a first nonmagnetic substance which is disposed between the first magnetic substance and the second magnetic substance and contains at least one first metal element (M1) selected from the group consisting of ruthenium (Ru) and osmium (Os) and at least one second metal element (M2) selected from the group consisting of rhodium (Rh) and iridium (Ir). A magnetic device of the embodiment includes: a third magnetic substance; the stack; and a second nonmagnetic substance which is disposed between the third magnetic substance and the stack.Type: ApplicationFiled: March 5, 2020Publication date: December 24, 2020Applicant: KIOXIA CORPORATIONInventors: Rina NOMOTO, Takayuki TSUKAGOSHI, Yasushi NAKASAKI, Masaru TOKO, Tadashi KAI, Takamitsu ISHIHARA