Patents by Inventor Keisuke Sakamoto
Keisuke Sakamoto 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: 11985284Abstract: An image reading apparatus includes a separating roller that is capable of switching between a separation state in which an original document is separated and a non-separation state in which the original document is not separated, and determines whether or not the original document is fed in the separation state or the non-separation state based on the types of the original document set through a user interface for instructing a select of the types of the original document to be read and a start of reading the original document.Type: GrantFiled: June 8, 2023Date of Patent: May 14, 2024Assignee: Seiko Epson CorporationInventors: Tomoyuki Mokuo, Noriyuki Koyanagi, Keiichiro Fukumasu, Keisuke Miyauchi, Naoki Sakamoto
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Patent number: 11976199Abstract: There is provided a novel halogenated zinc phthalocyanine pigment for a color filter, which can form a green color filter having excellent contrast and high luminance. A halogenated zinc phthalocyanine pigment for a color filter shows, in a Raman spectrum, a peak intensity of 3.0% or more at 716±2.2 cm?1 when a peak intensity at 650±10 cm?1 is regarded as 100%.Type: GrantFiled: April 28, 2020Date of Patent: May 7, 2024Assignee: DIC CORPORATIONInventors: Keisuke Sakamoto, Kentaro Oishi, Ryousuke Asami, Mayumi Tokuoka, Katsunori Shimada, Keisuke Fujisawa
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Publication number: 20240132049Abstract: A control apparatus for a rotating electric machine is provided. The rotating electric machine includes a moving portion that applies torque to a drive shaft of an internal combustion engine. The control apparatus acquires a rotational frequency signal that is a signal that changes depending on a rotational frequency of the moving portion per unit time. The control apparatus calculates a damping torque that is applied from the moving portion to the drive shaft to suppress vibration during operation of the internal combustion engine. The control apparatus calculates the damping torque based on the rotational frequency signal acquired by the signal acquiring unit in response to the rotating electric machine performing cranking of the internal combustion engine.Type: ApplicationFiled: December 29, 2023Publication date: April 25, 2024Applicant: DENSO CORPORATIONInventors: Syuya KAMIZONO, Akira Sakamoto, Yuichi Handa, Masaki Amakawa, Keisuke Kawai
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Publication number: 20240123834Abstract: A control device includes a switching control unit, an information acquisition unit, and a difference acquisition unit. The switching control unit performs switching control that increases braking torque of the braking device while decreasing braking torque of the rotating electrical machine, when a vehicle is decelerated. The information acquisition unit acquires information on a state of the vehicle. The difference acquisition unit acquires a braking torque difference indicating a difference between braking torque required for keeping a stopped state of the vehicle and braking torque of the braking device, when the vehicle is stopped. After the information acquisition unit detects the stopped state of the vehicle, the switching control unit corrects output torque of the rotating electrical machine based on the braking torque difference.Type: ApplicationFiled: December 15, 2023Publication date: April 18, 2024Applicant: DENSO CORPORATIONInventors: Haibo LIU, Keisuke Kawai, Akira Sakamoto, Shigeru Kamio, Tatsuya Takagi
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Publication number: 20240120805Abstract: A rotating electrical machine includes a stator equipped with a stator winding, a rotor arranged to face the stator, a housing in which the stator and the rotor are disposed, and a coolant supply unit. The coolant supply unit is located vertically above the stator and the rotor in the housing in a condition where the rotating electrical machine is mounted in place. The coolant supply unit works to deliver liquid coolant into the housing. A coolant guide is provided to direct the coolant, as supplied from the coolant supply unit, into an air gap between the stator and the rotor in the housing.Type: ApplicationFiled: December 20, 2023Publication date: April 11, 2024Applicant: DENSO CORPORATIONInventors: Masaki AMAKAWA, Yuichi HANDA, Keisuke KAWAI, Syuya KAMIZONO, Akira SAKAMOTO
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Patent number: 11922782Abstract: A control unit performs a reconciliation process in a case where an error occurs while a transport unit is transporting media to a temporary storage unit or a storage unit and the number of media stored in a memory becomes uncertain, the reconciliation process being a process in which the control unit checks the number of media stored in the memory using the temporary storage unit while at least a part of the media remain in the temporary storage unit.Type: GrantFiled: June 9, 2022Date of Patent: March 5, 2024Assignee: GLORY LTD.Inventors: Tsuyoshi Izumida, Masao Sakamoto, Keisuke Nada
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Publication number: 20230287218Abstract: The halogenated zinc phthalocyanine pigment is for use as a green pigment for color filters and capable of achieving high brightness. In the halogenated zinc phthalocyanine pigment, when a coating film containing 1.00 part by mass of the pigment, 0.95 parts by mass of a benzyl methacrylate-methacrylic acid copolymer, and 0.30 parts by mass of a dimethylaminoethyl methacrylate copolymer is heated at 230° C. for one hour to form an evaluation coating film having a thickness of 4 ?m, an average scattering intensity at scattering angles 2? in a range of 17° to 21° is determined from a two-dimensional scattering image obtained by GI-WAXS measurement of the evaluation coating film, and a normalized average scattering intensity is determined such that the average scattering intensity at an azimuth of 45° is 1, the normalized average scattering intensity at azimuths of 5° to 89° is 0.70 to 1.15.Type: ApplicationFiled: June 3, 2021Publication date: September 14, 2023Applicant: DIC CorporationInventors: Keisuke Sakamoto, Yuji Tamura, Kentaro Oishi, Yuta Hidaka, Takeshi Yamada, Ryousuke Asami, Kengo Yasui, Mayumi Tokuoka, Katsunori Shimada
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Publication number: 20230144572Abstract: A method for producing a halogenated zinc phthalocyanine pigment includes a step of forming a halogenated zinc phthalocyanine crude pigment into a pigment. The halogenated zinc phthalocyanine crude pigment is obtained by deposition of a halogenated zinc phthalocyanine, which is synthesized by using a compound that generates an acid by reacting with water, and the step includes a pretreatment step of heating the halogenated zinc phthalocyanine crude pigment in water to obtain a halogenated zinc phthalocyanine prepigment having a pH of 5.0 or more.Type: ApplicationFiled: April 30, 2020Publication date: May 11, 2023Applicant: DIC CorporationInventors: Keisuke Sakamoto, Kentaro Oishi, Ryousuke Asami, Mayumi Tokuoka, Katsunori Shimada
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Publication number: 20230141091Abstract: A method for producing a halogenated zinc phthalocyanine pigment includes a step of forming a halogenated zinc phthalocyanine crude pigment into a pigment. The halogenated zinc phthalocyanine crude pigment is obtained by depositing a halogenated zinc phthalocyanine, which is synthesized by using an acidic compound or a compound that generates an acid by reacting with water, and the step includes a pretreatment step of kneading the halogenated zinc phthalocyanine crude pigment along with water.Type: ApplicationFiled: April 30, 2020Publication date: May 11, 2023Applicant: DIC CorporationInventors: Keisuke Sakamoto, Ayaka Yamaji, Kazushi Suzuki, Mayumi Tokuoka, Katsunori Shimada
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Publication number: 20230147608Abstract: A method for producing a halogenated zinc phthalocyanine pigment according to one embodiment includes a first step of obtaining a halogenated zinc phthalocyanine crude pigment by deposition by extracting a halogenated zinc phthalocyanine, which is synthesized by using a compound that generates an acid by reacting with water; and a second step of forming the halogenated zinc phthalocyanine crude pigment into a pigment.Type: ApplicationFiled: April 30, 2020Publication date: May 11, 2023Applicant: DIC CorporationInventors: Keisuke Sakamoto, Ayaka Yamaji, Kazushi Suzuki, Mayumi Tokuoka, Katsunori Shimada
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Publication number: 20230147454Abstract: A method for producing a halogenated zinc phthalocyanine pigment includes a step of forming a halogenated zinc phthalocyanine crude pigment into a pigment. The halogenated zinc phthalocyanine crude pigment is obtained by depositing a halogenated zinc phthalocyanine, which is synthesized by using a compound that generates an acid by reacting with water, and the aforementioned step includes a pretreatment step of dry-crushing the halogenated zinc phthalocyanine crude pigment by using an attritor and then washing the dry-crushed halogenated zinc phthalocyanine crude pigment with water.Type: ApplicationFiled: April 30, 2020Publication date: May 11, 2023Applicant: DIC CorporationInventors: Keisuke Sakamoto, Ayaka Yamaji, Nozomi Shimizu, Mayumi Tokuoka, Katsunori Shimada
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Publication number: 20220002550Abstract: There is provided a novel halogenated zinc phthalocyanine pigment for a color filter, which can form a green color filter having excellent contrast and high luminance. A halogenated zinc phthalocyanine pigment for a color filter shows, in a Raman spectrum, a peak intensity of 3.0% or more at 716±2.2 cm?1 when a peak intensity at 650±10 cm?1 is regarded as 100%.Type: ApplicationFiled: April 28, 2020Publication date: January 6, 2022Applicant: DIC CorporationInventors: Keisuke Sakamoto, Kentaro Oishi, Ryousuke Asami, Mayumi Tokuoka, Katsunori Shimada, Keisuke Fujisawa
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Patent number: 10592150Abstract: A storage apparatus according to an aspect of the present invention is configured to perform a deduplication process on write data from a host. For the deduplication process, the storage apparatus calculates a feature value of write data, and records, in a management region, metadata that is a set of the feature value of the write data and information on a storage position of the write data. However, to prevent the amount of metadata stored in the management region from increasing, if write data meets a predetermined condition, the storage apparatus does not perform the deduplication process, and suppresses creation of metadata of the write data.Type: GrantFiled: February 15, 2016Date of Patent: March 17, 2020Assignee: Hitachi, Ltd.Inventors: Keisuke Sakamoto, Hisaharu Takeuchi, Haruki Takei, Hajime Ikeda
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Publication number: 20180253253Abstract: A storage apparatus according to an aspect of the present invention is configured to perform a deduplication process on write data from a host. For the deduplication process, the storage apparatus calculates a feature value of write data, and records, in a management region, metadata that is a set of the feature value of the write data and information on a storage position of the write data. However, to prevent the amount of metadata stored in the management region from increasing, if write data meets a predetermined condition, the storage apparatus does not perform the deduplication process, and suppresses creation of metadata of the write data.Type: ApplicationFiled: February 15, 2016Publication date: September 6, 2018Inventors: Keisuke SAKAMOTO, Hisaharu TAKEUCHI, Haruki TAKEI, Hajime IKEDA
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Patent number: 9904166Abstract: Provided is a green pigment composition which includes a halogenated zinc phthalocyanine pigment and a brominated chlorinated zinc phthalocyanine derivative having a phthalimide skeleton bonded by an alkylene group, and which enables a great enhancement in contrast without decreasing luminance and coloring power, and a color filter including the green pigment composition. The green pigment composition for color filters includes from 0.1 to 10 parts of a halogenated zinc phthalocyanine pigment derivative substituted with a functional group having a phthalimide skeleton bonded by an alkylene group per 100 parts of a halogenated zinc phthalocyanine pigment, in terms of a mass, and a color filter includes the green pigment composition for color filters.Type: GrantFiled: February 16, 2016Date of Patent: February 27, 2018Assignee: DIC CORPORATIONInventors: Keisuke Sakamoto, Akira Kimura, Katsunori Shimada
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Patent number: 9873796Abstract: Provided are a green pigment composition for a color filter having high brightness and wide color reproduction range in a liquid crystal display, and a color filter formed including the same. A halogenated zinc phthalocyanine containing an average of 10 to 14 halogen atoms per molecule in which an average of 8 to 12 are bromine atoms and an average of 2 to 5 are chlorine atoms is used. As a result, film thickness is less than when using Pigment Green 7 and, thus, a color filter with high brightness and wide color reproduction range can be provided.Type: GrantFiled: September 30, 2014Date of Patent: January 23, 2018Assignee: DIC CorporationInventors: Keisuke Sakamoto, Akira Kimura, Katsunori Shimada
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Publication number: 20170299961Abstract: Provided is a green pigment composition which includes a halogenated zinc phthalocyanine pigment and a brominated chlorinated zinc phthalocyanine derivative having a phthalimide skeleton bonded by an alkylene group, and which enables a great enhancement in contrast without decreasing luminance and coloring power, and a color filter including the green pigment composition. The green pigment composition for color filters includes from 0.1 to 10 parts of a halogenated zinc phthalocyanine pigment derivative substituted with a functional group having a phthalimide skeleton bonded by an alkylene group per 100 parts of a halogenated zinc phthalocyanine pigment, in terms of a mass, and a color filter includes the green pigment composition for color filters.Type: ApplicationFiled: February 16, 2016Publication date: October 19, 2017Applicant: DIC CorporationInventors: Keisuke Sakamoto, Akira Kimura, Katsunori Shimada
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Publication number: 20170009075Abstract: Provided are a green pigment composition for a color filter having high brightness and wide color reproduction range in a liquid crystal display, and a color filter formed including the same. A halogenated zinc phthalocyanine containing an average of 10 to 14 halogen atoms per molecule in which an average of 8 to 12 are bromine atoms and an average of 2 to 5 are chlorine atoms is used. As a result, film thickness is less than when using Pigment Green 7 and, thus, a color filter with high brightness and wide color reproduction range can be provided.Type: ApplicationFiled: September 30, 2014Publication date: January 12, 2017Inventors: Keisuke SAKAMOTO, Akira KIMURA, Katsunori SHIMADA
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Patent number: D983100Type: GrantFiled: August 23, 2021Date of Patent: April 11, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masayuki Yamaji, Keisuke Sakamoto
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Patent number: D1028951Type: GrantFiled: January 10, 2022Date of Patent: May 28, 2024Assignee: Mitsubishi Electric CorporationInventors: Kei Yokokawa, Narihiro Nakamoto, Toru Fukasawa, Hitoshi Arai, Tomohiro Takahashi, Kensuke Iwaki, Takamichi Kono, Keisuke Fujiwara, Kenjiro Takanishi, Tatsuya Sakamoto, Naoya Noguchi