公开(公告)号：US20220002205A1

公开(公告)日：2022-01-06

申请号：US17289975

申请日：2019-10-30

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Shigekazu TOMAI ,  Yoshihiro UEOKA ,  Satoshi KATSUMATA ,  Kenichi SASAKI ,  Masashi OYAMA

IPC: C04B35/453

Abstract: A sintered body, containing zinc, magnesium and oxygen as constituent elements, wherein the atomic ratio of zinc to the sum of zinc and magnesium [Zn/(Zn+Mg)] is 0.20 to 0.75, the atomic ratio of magnesium to the sum of zinc and magnesium [Mg/(Zn+Mg)] is 0.25 to 0.80, and the sintered body consists of a single crystal structure as measured by X-ray diffraction.

公开(公告)号：US20230183876A1

公开(公告)日：2023-06-15

申请号：US17995663

申请日：2021-04-09

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Futoshi UTSUNO ,  Satoshi KATSUMATA ,  Tsuyoshi HOSHINO

IPC: C25C7/04 ,  C25C7/02 ,  C25C1/02

CPC classification number: C25C7/04 ,  C25C7/02 ,  C25C1/02

Abstract: A Li ion recovery member and a Li recovery device may prevent occurrence of breakage of a permselective membrane and implement stable Li ion recovery for a long period of time even when a size of a Li recovery device is increased. The Li ion recovery member may include: a permselective membrane including a Li ion conductor made of an inorganic substance; electrodes; and a reticular elastic body, in which the electrodes are provided on at least one main surface side of the permselective membrane, at least one electrode of the electrodes is a porous electrode or a membrane electrode, and the porous electrode or the membrane electrode is sandwiched between the reticular elastic body and the permselective membrane. The Li recovery device may include a Li ion recovery electrolytic cell including the Li ion recovery member and configured to recover Li ions by electrodialysis.

公开(公告)号：US20220037561A1

公开(公告)日：2022-02-03

申请号：US17280045

申请日：2019-09-26

Applicant: IDEMITSU KOSAN CO.,LTD. ,  NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM ,  NIKKISO CO., LTD.

Inventor： Yoshihiro UEOKA ,  Shigekazu TOMAI ,  Satoshi KATSUMATA ,  Maki KUSHIMOTO ,  Manato DEKI ,  Yoshio HONDA ,  Hiroshi AMANO

IPC: H01L33/42

Abstract: A stacked body comprising: a semiconductor layer comprising a group III-V nitride semiconductor, and an electrode layer, wherein the electrode layer comprises magnesium oxide and zinc oxide, wherein the molar ratio of magnesium based on the sum of magnesium and zinc of the electrode layer [Mg/(Mg+Zn)] is 0.25 or more and 0.75 or less, and conductivity of the electrode layer is 1.0×10−2 S/cm or more.

公开(公告)号：US20240051838A1

公开(公告)日：2024-02-15

申请号：US18551635

申请日：2022-03-25

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Shota HOSHI ,  Daisuke MORI ,  Futoshi UTSUNO ,  Atsushi SATO ,  Satoshi KATSUMATA

IPC: C01D15/02 ,  B01D61/46 ,  B01D15/20 ,  C22B26/12 ,  C22B3/24 ,  C01D1/40 ,  C01D1/42 ,  B01J20/06

CPC classification number: C01D15/02 ,  B01D61/46 ,  B01D15/203 ,  C22B26/12 ,  C22B3/24 ,  C01D1/40 ,  C01D1/42 ,  B01J20/06

Abstract: A method of producing lithium hydroxide using a variety of aqueous solutions as a source liquid. The method includes: providing a lithium ion extraction liquid, including a first mixing of an aqueous solution containing lithium and at least one kind of an element other than lithium and a base in a reaction tank, with a pH regulated to 6 or more and 10 or less, a second mixing of the aqueous solution and the base, with a pH regulated to 12 or more, and removal of a hydroxide of the element other than lithium formed through the first and second mixing; recovering only lithium ion from the lithium ion extraction liquid to a recovery liquid with an electrochemical device including a Li-selectively permeable membrane; and performing the regulation of pH by returning the lithium ion extraction liquid after recovering lithium ion with the electrochemical device to the reaction tank.

公开(公告)号：US20220356118A1

公开(公告)日：2022-11-10

申请号：US17622391

申请日：2020-06-24

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Shigekazu TOMAI ,  Yoshihiro UEOKA ,  Satoshi KATSUMATA ,  Kenichi SASAKI

IPC: C04B35/453 ,  C04B35/64 ,  C23C14/34 ,  C23C14/08

Abstract: An oxide sintered body may include zinc, magnesium, a positive trivalent or positive tetravalent metal element X, and oxygen as constituent elements. The atomic ratio of the metal element X to the sum of the zinc, the magnesium, and the metal element X [X/(Zn+Mg+X)] may be 0.0001 or more and 0.6 or less. The atomic ratio of the magnesium to the sum of the zinc and the magnesium [Mg/(Zn+Mg)] may be 0.25 or more and 0.8 or less.

公开(公告)号：US20220393073A1

公开(公告)日：2022-12-08

申请号：US17775115

申请日：2020-11-02

Applicant: IDEMITSU KOSAN CO.,LTD. ,  NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM ,  NIKKISO CO., LTD.

Inventor： Shigekazu TOMAI ,  Yoshihiro UEOKA ,  Satoshi KATSUMATA ,  Maki KUSHIMOTO ,  Manato DEKI ,  Yoshio HONDA ,  Hiroshi AMANO

IPC: H01L33/42 ,  H01L33/32 ,  H01L33/12

Abstract: A stacked body may include a support, a buffer layer, and an electrode layer, in this order, wherein the buffer layer may include one or more metals selected from the group consisting of Ga, Al, In, and Zn, and oxygen, the electrode layer comprises an oxide of magnesium and an oxide of zinc, and the electrode layer has a half width of a diffraction peak observed at 2θ=34.8±0.5 deg in X-ray diffraction measurement of 0.43 deg or smaller.