Patents by Inventor Hajime Kashima
Hajime Kashima 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: 11752490Abstract: A support powder can improve cell performance under high humidity environment. A support and metal catalyst, including: a support powder; and metal fine particles supported on the support powder; wherein: the support powder is an aggregate of support fine particles; the support fine particles are fine particles of oxide compound and has a chained portion structured by a plurality of crystallites being fusion bonded to form a chain; the crystallites have a size of 10 to 30 nm; the support powder has a void; the void includes a secondary pore having a pore diameter of more than 25 nm and 80 nm or less determined by BJH method; and a volume of the secondary pore per unit volume of the support fine particles structuring the support powder is 0.313 cm3/cm3 or more, is provided.Type: GrantFiled: October 16, 2019Date of Patent: September 12, 2023Assignees: Nihon Kagaku Sangyo, Co, Ltd., University of YamanishiInventors: Chisato Arata, Hajime Kashima, Katsuyoshi Kakinuma, Makoto Uchida, Akihiro Iiyama
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Publication number: 20210339224Abstract: A support powder can improve cell performance under high humidity environment. A support and metal catalyst, including: a support powder; and metal fine particles supported on the support powder; wherein: the support powder is an aggregate of support fine particles; the support fine particles are fine particles of oxide compound and has a chained portion structured by a plurality of crystallites being fusion bonded to form a chain; the crystallites have a size of 10 to 30 nm; the support powder has a void; the void includes a secondary pore having a pore diameter of more than 25 nm and 80 nm or less determined by BJH method; and a volume of the secondary pore per unit volume of the support fine particles structuring the support powder is 0.313 cm3/cm3 or more, is provided.Type: ApplicationFiled: October 16, 2019Publication date: November 4, 2021Applicants: Nihon Kagaku Sangyo Co., Ltd., University of YamanashiInventors: Chisato Arata, Hajime Kashima, Katsuyoshi Kakinuma, Makoto Uchida, Akihiro Iiyama
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Publication number: 20180040893Abstract: A positive electrode active material for lithium secondary batteries has excellent charge-discharge cycle characteristics and high capacity when used as a positive electrode material. A nonaqueous electrolyte lithium secondary battery includes a Li—Ni—Co—Al composite oxide, wherein the initial discharge capacity when discharging at a measurement temperature of 20° C., a discharge rate of 0.1 C, and a voltage range of 4.25-2.5 V inclusive is 192 mAh/g or more; the discharge capacity hold rate when repeatedly charged and discharged 100 times under the same conditions is 94% or more; and the composite oxide particles have an aspect ratio equal to or greater than 0.9. An aqueous solution of a Ni compound and a Co compound is stirred in a N2 gas atmosphere while adding alkali, which are then subjected to dehydration and drying and subsequently dry-blended with Li and Al compounds, after which the resulting product is baked in an oxidizing atmosphere.Type: ApplicationFiled: March 10, 2016Publication date: February 8, 2018Inventors: Hajime KASHIMA, Shinobu SATO, Fumihiko MAKI
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Patent number: 9755223Abstract: In a treatment process for a positive electrode active material for a lithium-ion secondary battery, Li compounds such as Li2CO3, LiOH, and the like, present in a positive electrode active material for a lithium-ion secondary battery but unsuitable for a positive electrode material, is removed. In a case wherein the resultant Li compound is used as a positive electrode material of the secondary battery, a discharge capacity and an average discharge voltage of the secondary battery do not decline, and gelation caused by a cleaning treatment is prevented. The positive electrode active material is cleaned with a cleaning fluid containing NH3, and then solid-liquid separation is performed, and a solid component is calcined at 600 to 700° C. in an oxygen atmosphere. The cleaning fluid has a conductivity of 11.6 mS/cm or less, and contains a recovered liquid component and may be repeatedly used as a cleaning fluid.Type: GrantFiled: March 14, 2014Date of Patent: September 5, 2017Assignee: NIHONKAGAKUSANGYO CO., LTD.Inventors: Kazuhiro Hamada, Yoshito Sugibuchi, Hajime Kashima
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Publication number: 20160043383Abstract: In a treatment process for a positive electrode active material for a lithium-ion secondary battery, Li compounds such as Li2CO3, LiOH, and the like, present in a positive electrode active material for a lithium-ion secondary battery but unsuitable for a positive electrode material, is removed. In a case wherein the resultant Li compound is used as a positive electrode material of the secondary battery, a discharge capacity and an average discharge voltage of the secondary battery do not decline, and gelation caused by a cleaning treatment is prevented. The positive electrode active material is cleaned with a cleaning fluid containing NH3, and then solid-liquid separation is performed, and a solid component is calcined at 600 to 700° C. in an oxygen atmosphere. The cleaning fluid has a conductivity of 11.6 mS/cm or less, and contains a recovered liquid component and may be repeatedly used as a cleaning fluid.Type: ApplicationFiled: March 14, 2014Publication date: February 11, 2016Applicant: NIHONKAGAKUSANGYO CO., LTD.Inventors: Kazuhiro HAMADA, Yoshito SUGIBUCHI, Hajime KASHIMA
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Patent number: 7906522Abstract: The present invention provides 2-aminoquinazoline derivatives represented by formula (I): wherein R1 and R2 may be the same or different and each represents a hydrogen atom, substituted or unsubstituted lower alkyl, and the like; X represents a bond or CR7aR7b wherein R7a and R7b may be the same or different and each represents a hydrogen atom, and the like; when X is a bond, R3 represents substituted or unsubstituted aryl or a substituted or unsubstituted aromatic heterocyclic group; when X is CR7aR7b wherein R7a and R7b have the same meanings as defined above, respectively, R3 represents substituted or unsubstituted lower alkoxy, substituted or unsubstituted aryl, and the like; R4 represents a hydrogen atom, hydroxy, substituted or unsubstituted lower alkoxy, and the like; and R5 represents a hydrogen atom, substituted or unsubstituted aryl, and the like, or a pharmaceutically acceptable salt thereof.Type: GrantFiled: April 28, 2006Date of Patent: March 15, 2011Assignee: Kyowa Hakko Kirin Co., LtdInventors: Kuniyuki Kishikawa, Hidetomo Imase, Hajime Kashima, Kiyotoshi Mori, Toshihide Ikemura, Yoshisuke Nakasato, Misato Tomuro
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Publication number: 20110039845Abstract: A 2-aminoquinazoline derivative represented by formula (I) {wherein R1 represents a hydrogen atom, or the like, R2 represents a hydrogen atom, R3 represents formula (II) [wherein A1 represents formula (III), or the like, R8 represents lower alkyl, or the like, and R9 represents optionally substituted aryl, or the like], R4 represents hydroxy, or the like, and R5 represents optionally substituted aryl, or the like}, or a pharmaceutically acceptable salt thereof is provided.Type: ApplicationFiled: April 23, 2009Publication date: February 17, 2011Applicant: KYOWA HAKKO KIRIN CO., LTD.Inventors: Hajime Kashima, Tomoyuki Nishikawa, Yusuke Yamada, Toshihiro Seike, Yoshisuke Nakasato, Hiroshi Umehara
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Publication number: 20090137583Abstract: The present invention provides 2-aminoquinazoline derivatives represented by formula (I): wherein R1 and R2 may be the same or different and each represents a hydrogen atom, substituted or unsubstituted lower alkyl, and the like; X represents a bond or CR7aR7b wherein R7a and R7b may be the same or different and each represents a hydrogen atom, and the like; when X is a bond, R3 represents substituted or unsubstituted aryl or a substituted or unsubstituted aromatic heterocyclic group; when X is CR7aR7b wherein R7a and R7b have the same meanings as defined above, respectively, R3 represents substituted or unsubstituted lower alkoxy, substituted or unsubstituted aryl, and the like; R4 represents a hydrogen atom, hydroxy, substituted or unsubstituted lower alkoxy, and the like; and R5 represents a hydrogen atom, substituted or unsubstituted aryl, and the like, or a pharmaceutically acceptable salt thereof.Type: ApplicationFiled: April 28, 2006Publication date: May 28, 2009Applicant: KYOWA HAKKO KOGYO CO., LTD.Inventors: Kuniyuki Kishikawa, Hidetomo Imase, Hajime Kashima, Kiyotoshi Mori, Toshihide Ikemura, Yoshisuke Nakasato, Misato Tomuro
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Publication number: 20040110826Abstract: The present invention provides an &agr;2c-adrenoceptor antagonist comprising, as an active ingredient, a condensed-ring-pyrimidine derivative represented by general formula (I) below or a pharmaceutically acceptable salt thereof useful for treating and/or preventing various diseases induced by hyperactivity of &agr;2c-adrenoceptor (for example, Parkinson's disease, L-DOPA-induced dyskinesia, tardive dyskinesia and depression) and the like.Type: ApplicationFiled: May 28, 2003Publication date: June 10, 2004Inventors: Noriaki Uesaka, Hironori Imma, Hajime Kashima, Masako Kurokawa, Hiromi Nonaka, Tomoyuki Kanda, Yoshihisa Kuwana, Shinichiro Toki, Junichi Shimada
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Patent number: D543903Type: GrantFiled: February 15, 2005Date of Patent: June 5, 2007Assignee: Honda Motor Co., Ltd.Inventor: Hajime Kashima