Patents by Inventor Takahiro KAWAHARA
Takahiro KAWAHARA 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: 20240124804Abstract: Provided is an ?-amylase which exhibits high amylolytic activity at low temperatures. An ?-amylase mutant, wherein an amino acid residue at a position of the following (a) and (b); (c); or (a), (b), and (c), in the amino acid sequence of SEQ ID NO: 2 or an amino acid sequence having at least 90% identity thereto is substituted with another amino acid residue: (a) position 303 of the amino acid sequence of SEQ ID NO: 2 or a position corresponding thereto; (b) one or more positions selected from the group consisting of position 295 and position 296 of the amino acid sequence of SEQ ID NO: 2 and positions corresponding thereto; or (c) position 331 of the amino acid sequence of SEQ ID NO: 2 or a position corresponding thereto.Type: ApplicationFiled: July 20, 2021Publication date: April 18, 2024Applicant: KAO CORPORATIONInventors: Mao SHAKU, Takahiro HIOKI, Akihito KAWAHARA
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Patent number: 11940924Abstract: A memory system according to an embodiment includes a memory system includes a nonvolatile memory and a memory controller. The nonvolatile memory includes blocks. The memory controller includes first and second tables, and first and second storage areas. The first table is managed in units of map segments. The second table includes first entries associated with a plurality of map segments included in the first table. The first storage area is configured to store a change history of the first table. The second storage area is configured to store a physical address of a block that is a storage destination of a copy of a changed map segment and a change history of the second table.Type: GrantFiled: March 16, 2022Date of Patent: March 26, 2024Assignee: Kioxia CorporationInventors: Takahiro Kawahara, Mitsunori Tadokoro
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Patent number: 11894177Abstract: In an electronic component, a terminal electrode has a thickest portion and a part thinner than the thickest portion. Accordingly, an increase in solder fillet forming region occurs when the electronic component is solder-mounted onto a predetermined mounting substrate. In the electronic component, mounting strength is improved as a result of the increase in solder fillet forming region. In addition, in the electronic component, the thickest portion overlaps a bump electrode in a direction orthogonal to the lower surface of an element body. Accordingly, the impact that is applied to the electronic component during the mounting onto the mounting substrate is reduced and the impact resistance of the electronic component is improved.Type: GrantFiled: March 9, 2023Date of Patent: February 6, 2024Assignee: TDK CORPORATIONInventors: Takahiro Kawahara, Manabu Ohta, Kenei Onuma, Yuuya Kaname, Ryo Fukuoka, Hokuto Eda, Masataro Saito, Kohei Takahashi
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Patent number: 11810708Abstract: In an electronic component, a terminal electrode has a thickest portion and a part thinner than the thickest portion. Accordingly, an increase in solder fillet forming region occurs when the electronic component is solder-mounted onto a predetermined mounting substrate. In the electronic component, mounting strength is improved as a result of the increase in solder fillet forming region. In addition, in the electronic component, the thickest portion overlaps a bump electrode in a direction orthogonal to the lower surface of an element body. Accordingly, the impact that is applied to the electronic component during the mounting onto the mounting substrate is reduced and the impact resistance of the electronic component is improved.Type: GrantFiled: March 9, 2023Date of Patent: November 7, 2023Assignee: TDK CORPORATIONInventors: Takahiro Kawahara, Manabu Ohta, Kenei Onuma, Yuuya Kaname, Ryo Fukuoka, Hokuto Eda, Masataro Saito, Kohei Takahashi
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Patent number: 11705265Abstract: In a coil component, a second magnetic portion disposed in the vicinity of a coil is designed to have a higher proportion of Fe than a metal magnetic powder-containing resin constituting a first magnetic portion. Therefore, a magnetic flux of the coil flows smoothly. Although the second magnetic portion has a relatively lower withstand voltage than the first magnetic portion, since the second magnetic portion is surrounded by the first magnetic portion, it is not exposed on an outer surface of a magnetic body. For this reason, a situation in which the coil and external terminal electrodes are short-circuited with the second magnetic portion therebetween is effectively curbed, and short-circuiting between the coil and the external terminal electrodes can be curbed.Type: GrantFiled: May 19, 2020Date of Patent: July 18, 2023Assignee: TDK CORPORATIONInventors: Miyuki Asai, Takahiro Kawahara, Masazumi Arata, Hitoshi Ohkubo
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Publication number: 20230215618Abstract: In an electronic component, a terminal electrode has a thickest portion and a part thinner than the thickest portion. Accordingly, an increase in solder fillet forming region occurs when the electronic component is solder-mounted onto a predetermined mounting substrate. In the electronic component, mounting strength is improved as a result of the increase in solder fillet forming region. In addition, in the electronic component, the thickest portion overlaps a bump electrode in a direction orthogonal to the lower surface of an element body. Accordingly, the impact that is applied to the electronic component during the mounting onto the mounting substrate is reduced and the impact resistance of the electronic component is improved.Type: ApplicationFiled: March 9, 2023Publication date: July 6, 2023Applicant: TDK CORPORATIONInventors: Takahiro KAWAHARA, Manabu OHTA, Kenei ONUMA, Yuuya KANAME, Ryo FUKUOKA, Hokuto EDA, Masataro SAITO, Kohei TAKAHASHI
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Publication number: 20230215617Abstract: In an electronic component, a terminal electrode has a thickest portion and a part thinner than the thickest portion. Accordingly, an increase in solder fillet forming region occurs when the electronic component is solder-mounted onto a predetermined mounting substrate. In the electronic component, mounting strength is improved as a result of the increase in solder fillet forming region. In addition, in the electronic component, the thickest portion overlaps a bump electrode in a direction orthogonal to the lower surface of an element body. Accordingly, the impact that is applied to the electronic component during the mounting onto the mounting substrate is reduced and the impact resistance of the electronic component is improved.Type: ApplicationFiled: March 9, 2023Publication date: July 6, 2023Applicant: TDK CORPORATIONInventors: Takahiro KAWAHARA, Manabu OHTA, Kenei ONUMA, Yuuya KANAME, Ryo FUKUOKA, Hokuto EDA, Masataro SAITO, Kohei TAKAHASHI
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Patent number: 11631529Abstract: In an electronic component, a terminal electrode has a thickest portion and a part thinner than the thickest portion. Accordingly, an increase in solder fillet forming region occurs when the electronic component is solder-mounted onto a predetermined mounting substrate. In the electronic component, mounting strength is improved as a result of the increase in solder fillet forming region. In addition, in the electronic component, the thickest portion overlaps a bump electrode in a direction orthogonal to the lower surface of an element body. Accordingly, the impact that is applied to the electronic component during the mounting onto the mounting substrate is reduced and the impact resistance of the electronic component is improved.Type: GrantFiled: March 6, 2020Date of Patent: April 18, 2023Assignee: TDK CORPORATIONInventors: Takahiro Kawahara, Manabu Ohta, Kenei Onuma, Yuuya Kaname, Ryo Fukuoka, Hokuto Eda, Masataro Saito, Kohei Takahashi
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Publication number: 20230085675Abstract: A memory system according to an embodiment includes a memory system includes a nonvolatile memory and a memory controller. The nonvolatile memory includes blocks. The memory controller includes first and second tables, and first and second storage areas. The first table is managed in units of map segments. The second table includes first entries associated with a plurality of map segments included in the first table. The first storage area is configured to store a change history of the first table. The second storage area is configured to store a physical address of a block that is a storage destination of a copy of a changed map segment and a change history of the second table.Type: ApplicationFiled: March 16, 2022Publication date: March 23, 2023Applicant: Kioxia CorporationInventors: Takahiro KAWAHARA, Mitsunori TADOKORO
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Patent number: 11557427Abstract: A coil component in which a change in thicknesses of the winding part is prevented is provided. According to the coil component, since each of a pair of neighboring resin walls and a seed part between the pair of resin walls are separated by a predetermined distance, a plating part grown on the seed part is easy to grow uniformly between the pair of neighboring resin walls. For this reason, the winding part whose surface is gentle and in which a change in thickness is prevented is obtained by plating growth.Type: GrantFiled: January 3, 2020Date of Patent: January 17, 2023Assignee: TDK CORPORATIONInventors: Hitoshi Ohkubo, Masazumi Arata, Manabu Ohta, Yuuya Kaname, Yoshihiro Maeda, Takahiro Kawahara, Hokuto Eda, Shigeki Sato
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Publication number: 20210225588Abstract: In a coil component and a method for manufacturing the same, a winding part of a coil is grown by plating so as to extend between resin walls of a resin body provided before the coil is grown by plating. The resin wall is interposed between adjacent turns of the winding part of the coil during the plating growth, and therefore contact between adjacent turns of the winding part of the coil cannot occur.Type: ApplicationFiled: April 7, 2021Publication date: July 22, 2021Applicant: TDK CORPORATIONInventors: Hitoshi OHKUBO, Masazumi ARATA, Manabu OHTA, Shou KAWADAHARA, Yoshihiro MAEDA, Takahiro KAWAHARA, Hokuto EDA, Shigeki SATO
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Patent number: 11043329Abstract: In a planar coil element, a dead space in a non-overlapping region is reduced by designing a total width of a first resin wall and a first turn located in the non-overlapping region to be narrow, more specifically, by designing the total width to be narrower than a total width of a second turn outside the first turn and a second resin wall located inside the turn and also than a total width of a third turn on the outer side and a third resin wall located inside the turn. As a result, a volume of a magnetic element body in a magnetic core portion of a coil can be increased, and an, inductance value, which is a magnetic characteristic, can also be improved.Type: GrantFiled: July 5, 2018Date of Patent: June 22, 2021Assignee: TDK CORPORATIONInventors: Hitoshi Ohkubo, Masazumi Arata, Takahiro Kawahara, Hokuto Eda, Hiroki Tsujiai
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Patent number: 10998130Abstract: In a coil component and a method for manufacturing the same, a winding part of a coil is grown by plating so as to extend between resin walls of a resin body provided before the coil is grown by plating. The resin wall is interposed between adjacent turns of the winding part of the coil during the plating growth, and therefore contact between adjacent turns of the winding part of the coil cannot occur.Type: GrantFiled: August 29, 2019Date of Patent: May 4, 2021Assignee: TDK CORPORATIONInventors: Hitoshi Ohkubo, Masazumi Arata, Manabu Ohta, Shou Kawadahara, Yoshihiro Maeda, Takahiro Kawahara, Hokuto Eda, Shigeki Sato
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Publication number: 20200373061Abstract: In a coil component, a second magnetic portion disposed in the vicinity of a coil is designed to have a higher proportion of Fe than a metal magnetic powder-containing resin constituting a first magnetic portion. Therefore, a magnetic flux of the coil flows smoothly. Although the second magnetic portion has a relatively lower withstand voltage than the first magnetic portion, since the second magnetic portion is surrounded by the first magnetic portion, it is not exposed on an outer surface of a magnetic body. For this reason, a situation in which the coil and external terminal electrodes are short-circuited with the second magnetic portion therebetween is effectively curbed, and short-circuiting between the coil and the external terminal electrodes can be curbed.Type: ApplicationFiled: May 19, 2020Publication date: November 26, 2020Applicant: TDK CORPORATIONInventors: Miyuki ASAI, Takahiro KAWAHARA, Masazumi ARATA, Hitoshi OHKUBO
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Patent number: 10847312Abstract: In a planar coil element, since an overlapping portion of a fourth resin wall of a first conductor pattern protrudes from an end surface of a main body portion, restriction on a width of the overlapping portion is relaxed, and the wide overlapping portion is realized. Therefore, an improvement in a withstand voltage between the second external terminal electrode formed on the end surface and an outermost turn of the first conductor pattern is realized. Similarly, regarding the second conductor pattern, the improvement in the withstand voltage between the first external terminal electrode formed on the end surface and an outermost turn of the second conductor pattern is realized.Type: GrantFiled: July 5, 2018Date of Patent: November 24, 2020Assignee: TDK CORPORATIONInventors: Hitoshi Ohkubo, Masazumi Arata, Takahiro Kawahara, Hokuto Eda, Hiroki Tsujiai
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Publication number: 20200303116Abstract: In an electronic component, a terminal electrode has a thickest portion and a part thinner than the thickest portion. Accordingly, an increase in solder fillet forming region occurs when the electronic component is solder-mounted onto a predetermined mounting substrate. In the electronic component, mounting strength is improved as a result of the increase in solder fillet forming region. In addition, in the electronic component, the thickest portion overlaps a bump electrode in a direction orthogonal to the lower surface of an element body. Accordingly, the impact that is applied to the electronic component during the mounting onto the mounting substrate is reduced and the impact resistance of the electronic component is improved.Type: ApplicationFiled: March 6, 2020Publication date: September 24, 2020Applicant: TDK CORPORATIONInventors: Takahiro KAWAHARA, Manabu OHTA, Kenei ONUMA, Yuuya KANAME, Ryo FUKUOKA, Hokuto EDA, Masataro SAITO, Kohei TAKAHASHI
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Publication number: 20200143980Abstract: A coil component in which a change in thicknesses of the winding part is prevented is provided. According to the coil component, since each of a pair of neighboring resin walls and a seed part between the pair of resin walls are separated by a predetermined distance, a plating part grown on the seed part is easy to grow uniformly between the pair of neighboring resin walls. For this reason, the winding part whose surface is gentle and in which a change in thickness is prevented is obtained by plating growth.Type: ApplicationFiled: January 3, 2020Publication date: May 7, 2020Applicant: TDK CORPORATIONInventors: Hitoshi OHKUBO, Masazumi ARATA, Manabu OHTA, Yuuya KANAME, Yoshihiro MAEDA, Takahiro KAWAHARA, Hokuto EDA, Shigeki SATO
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Patent number: 10559417Abstract: A coil component in which a change in thicknesses of the winding part is prevented is provided. According to the coil component, since each of a pair of neighboring resin walls and a seed part between the pair of resin walls are separated by a predetermined distance, a plating part grown on the seed part is easy to grow uniformly between the pair of neighboring resin walls. For this reason, the winding part whose surface is gentle and in which a change in thickness is prevented is obtained by plating growth.Type: GrantFiled: May 27, 2016Date of Patent: February 11, 2020Assignee: TDK CORPORATIONInventors: Hitoshi Ohkubo, Masazumi Arata, Manabu Ohta, Yuuya Kaname, Yoshihiro Maeda, Takahiro Kawahara, Hokuto Eda, Shigeki Sato
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Publication number: 20190385792Abstract: In a coil component and a method for manufacturing the same, a winding part of a coil is grown by plating so as to extend between resin walls of a resin body provided before the coil is grown by plating. The resin wall is interposed between adjacent turns of the winding part of the coil during the plating growth, and therefore contact between adjacent turns of the winding part of the coil cannot occur.Type: ApplicationFiled: August 29, 2019Publication date: December 19, 2019Inventors: Hitoshi OHKUBO, Masazumi ARATA, Manabu OHTA, Shou KAWADAHARA, Yoshihiro MAEDA, Takahiro KAWAHARA, Hokuto EDA, Shigeki SATO
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Patent number: 10500501Abstract: In an exemplary game device, a requesting unit requests establishment of a friendship using one of plural methods, the friendship being a relationship established based on a mutual agreement between users. A display control unit causes a display unit to display one of a request method by which establishment of the friendship has been requested by the requesting unit, and an establishing method by which the friendship has been established.Type: GrantFiled: April 18, 2017Date of Patent: December 10, 2019Assignee: Nintendo Co., Ltd.Inventors: Shinpei Kiwada, Takahiro Kawahara, Kenichi Takemoto, Xizhou Xu