Patents by Inventor Kentaro Murakami

Kentaro Murakami 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).

  • Patent number: 11865836
    Abstract: A liquid ejecting head includes: a nozzle; a flow path member in which a flow path communicating with the nozzle is formed and which has an inner wall surface defining the flow path and an outer wall surface that faces away from the flow path with respect to the inner wall surface; and a temperature sensor disposed on a part of the outer wall surface and configured to detect a temperature of the liquid in the flow path. The flow path includes a narrowed region having a narrow width in a second direction orthogonal to a first direction in a direction in which the flow path extends, and the temperature sensor is disposed on a portion of the outer wall surface that forms the narrowed region.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: January 9, 2024
    Inventors: Kentaro Murakami, Hiroaki Okui
  • Patent number: 11840963
    Abstract: An acoustic attenuator comprises a first attenuation unit, a second attenuation unit, a welded section, and a communication part. A first acoustic damper is provided on an outer surface of a first acoustic liner, which faces toward a side opposite from an object, to form a first damper space that communicates with an internal space of the object. The second attenuation unit is attached to an outer surface of the object. The welded section is provided at least between the first acoustic damper and a second acoustic damper. The welded section secures the second attenuation unit to the first acoustic liner. The communication part is disposed in a position farther from an outer surface of the object than the welded section, allowing communication between the first damper space and a second damper space.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: December 12, 2023
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Hirokazu Shiraishi, Tatsuya Nadayoshi, Kentaro Murakami
  • Publication number: 20230321051
    Abstract: An FGF21 production promoting agent containing, as an active ingredient, a compound represented by the following formula (1): wherein each of R1 and R2, which may be identical to or different from each other, represents, for example, a hydrogen atom; each of R3a, R3b, R4a, and R4b, which may be identical to or different from one another, represents, for example, a hydrogen atom or a halogen atom, or R3a and R3b or R4a and R4b may bond together to form an alkylenedioxy group; X represents an oxygen atom, a sulfur atom, or N-R5 (R5 represents, for example, a hydrogen atom or a C1-4 alkyl group); Y represents, for example, an oxygen atom, an S(O)1 group (1 is a number of from 0 to 2), or a carbonyl group; Z represents CH or N; n is a number of from 1 to 6; and m is a number from 2 to 6, a salt of the compound, or a solvate of the compound or the salt.
    Type: Application
    Filed: May 24, 2023
    Publication date: October 12, 2023
    Applicant: Kowa Co., Ltd.
    Inventors: Toshiaki TAKIZAWA, Kentaro MURAKAMI
  • Patent number: 11780243
    Abstract: A liquid ejecting head includes: a plurality of head chips having nozzles; a holder holding the plurality of head chips; and a planar heater disposed on the holder and heating the holder, in which the heater includes an outer peripheral region along an outer edge of the holder and a middle region positioned inside the outer peripheral region in a plan view, and a heat generation amount per unit time of the outer peripheral region is larger than a heat generation amount per unit time of the middle region.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: October 10, 2023
    Assignee: Seiko Epson Corporation
    Inventors: Haruhisa Uezawa, Hiroki Kobayashi, Katsuhiro Okubo, Kentaro Murakami, Takahiro Kanegae, Shingo Tomimatsu
  • Publication number: 20230202185
    Abstract: A liquid ejecting head includes: a nozzle row configured by arranging nozzles ejecting a liquid in a first-direction in a second-direction orthogonal to the first-direction; a drive element; and stacked components defining a common liquid chamber communicating with the nozzle row, in which the stacked components include a filter partitioning the common liquid chamber into an upstream common liquid chamber and a downstream common liquid chamber, a first-case defining a first-common-liquid-chamber-portion as a part of the upstream common liquid chamber and stacked on the filter, and a second-case defining a second-common-liquid-chamber-portion as a part of the upstream common liquid chamber and stacked on the first-case, the second-common liquid-chamber-portion is positioned in a direction opposite to the first-direction from the drive element, and a width of the second-common-liquid-chamber-portion in a third-direction orthogonal to the first-direction and the second-direction is longer than a width of the fir
    Type: Application
    Filed: December 27, 2022
    Publication date: June 29, 2023
    Inventors: Kentaro MURAKAMI, Katsuhiro OKUBO, Takahiro KANEGAE, Haruhisa UEZAWA, Hiroki KOBAYASHI
  • Publication number: 20230019803
    Abstract: An FGF21 production promoting agent containing, as an active ingredient, a compound represented by the following formula (1): wherein each of R1 and R2, which may be identical to or different from each other, represents, for example, a hydrogen atom; each of R3a, R3b, R4a, and R4b, which may be identical to or different from one another, represents, for example, a hydrogen atom or a halogen atom, or R3a and R3b or R4a and R4b may bond together to form an alkylenedioxy group; X represents an oxygen atom, a sulfur atom, or N—R5 (R5 represents, for example, a hydrogen atom or a C1-4 alkyl group); Y represents, for example, an oxygen atom, an S(O)l group (l is a number of from 0 to 2), or a carbonyl group; Z represents CH or N; n is a number of from 1 to 6; and m is a number from 2 to 6, a salt of the compound, or a solvate of the compound or the salt.
    Type: Application
    Filed: September 2, 2022
    Publication date: January 19, 2023
    Applicant: Kowa Co., Ltd.
    Inventors: Toshiaki TAKIZAWA, Kentaro MURAKAMI
  • Publication number: 20220371338
    Abstract: A liquid ejecting head includes: a plurality of head chips having nozzles; a holder holding the plurality of head chips; and a planar heater disposed on the holder and heating the holder, in which the heater includes an outer peripheral region along an outer edge of the holder and a middle region positioned inside the outer peripheral region in a plan view, and a heat generation amount per unit time of the outer peripheral region is larger than a heat generation amount per unit time of the middle region.
    Type: Application
    Filed: May 17, 2022
    Publication date: November 24, 2022
    Inventors: Haruhisa UEZAWA, Hiroki KOBAYASHI, Katsuhiro OKUBO, Kentaro MURAKAMI, Takahiro KANEGAE, Shingo TOMIMATSU
  • Publication number: 20220349346
    Abstract: An acoustic attenuator comprises a first attenuation unit, a second attenuation unit, a welded section, and a communication part. A first acoustic damper is provided on an outer surface of a first acoustic liner, which faces toward a side opposite from an object, to form a first damper space that communicates with an internal space of the object. The second attenuation unit is attached to an outer surface of the object. The welded section is provided at least between the first acoustic damper and a second acoustic damper. The welded section secures the second attenuation unit to the first acoustic liner. The communication part is disposed in a position farther from an outer surface of the object than the welded section, allowing communication between the first damper space and a second damper space.
    Type: Application
    Filed: July 28, 2020
    Publication date: November 3, 2022
    Applicant: Mitsubishi Power, Ltd.
    Inventors: Hirokazu Shiraishi, Tatsuya Nadayoshi, Kentaro Murakami
  • Publication number: 20220305788
    Abstract: A liquid ejecting head includes: a plurality of head chips having a nozzle surface; a thermally conductive holder holding the plurality of head chips; a thermally conductive flow path structure provided with a flow path of a liquid supplied to the plurality of head chips; and a planar heater disposed between the holder and the flow path structure and along a direction parallel to the nozzle surface, in which the heater overlaps the plurality of head chips in a plan view.
    Type: Application
    Filed: March 23, 2022
    Publication date: September 29, 2022
    Inventors: Takahiro KANEGAE, Katsuhiro OKUBO, Kentaro MURAKAMI, Shingo TOMIMATSU, Hiroki KOBAYASHI, Haruhisa UEZAWA
  • Publication number: 20220305787
    Abstract: A liquid ejecting head supported by a support body includes: a first head chip; a holder having a holding portion holding the first head chip and a flange portion; and a heater heating the holding portion, in which the holding portion has a heat receiving portion receiving heat from the heater, and a shortest path of heat transferred through the holder from the heat receiving portion to the flange portion is bent or curved at two or more points.
    Type: Application
    Filed: March 23, 2022
    Publication date: September 29, 2022
    Inventors: Katsuhiro Okubo, Takahiro Kanegae, Kentaro Murakami, Shingo Tomimatsu, Hiroki Kobayashi, Haruhisa Uezawa
  • Publication number: 20220305785
    Abstract: A liquid ejecting head includes: head chips including a first-head-chip and a second-head-chip; a holder holding the head chips; and a heater along a direction parallel to a nozzle surface. The first-head-chip and the second-head-chip are disposed to be offset from each other in both a first-direction and a second-direction parallel to the nozzle surface and intersecting with each other. When a first-side is one of the four sides of a virtual rectangle circumscribing the aggregate of the head chips and a second-side and a third-side are coupled to both ends of the first-side, the first-head-chip is in contact with the first-side and the third-side and the second-head chip is in contact with the second-side. The heater overlaps the head chips. A first-region surrounded by the first-side, the second-side, the first-head-chip, and the second-head-chip includes a first-outside-part positioned outside the outer edge of the heater.
    Type: Application
    Filed: March 23, 2022
    Publication date: September 29, 2022
    Inventors: Takahiro KANEGAE, Katsuhiro OKUBO, Kentaro MURAKAMI, Shingo TOMIMATSU, Hiroki KOBAYASHI, Haruhisa UEZAWA
  • Publication number: 20220234350
    Abstract: A liquid ejecting head includes: a nozzle; a flow path member in which a flow path communicating with the nozzle is formed and which has an inner wall surface defining the flow path and an outer wall surface that faces away from the flow path with respect to the inner wall surface; and a temperature sensor disposed on a part of the outer wall surface and configured to detect a temperature of the liquid in the flow path. The flow path includes a narrowed region having a narrow width in a second direction orthogonal to a first direction in a direction in which the flow path extends, and the temperature sensor is disposed on a portion of the outer wall surface that forms the narrowed region.
    Type: Application
    Filed: January 24, 2022
    Publication date: July 28, 2022
    Inventors: Kentaro MURAKAMI, Hiroaki OKUI
  • Patent number: 11292256
    Abstract: A liquid ejecting head including a nozzle configured to eject a liquid, a liquid flow path communicating with the nozzle, a communication chamber including a communication port configured to communicate with atmospheric air, a partitioning wall portion provided between the liquid flow path and the communication chamber, the partitioning wall portion including an opening portion that communicates the liquid flow path and the communication chamber to each other, and an elastic member closing the opening portion.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: April 5, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Yoshinori Nakajima, Kentaro Murakami, Yoshiki Sugawara, Hiroshige Owaki
  • Patent number: 11110717
    Abstract: A channel member includes a liquid emission port coupled to a liquid introduction section to emit liquid to the liquid introduction section, and a liquid feeding port that receives liquid from outside to feed the liquid to the liquid emission port. The liquid emission port and the liquid feeding port have the same opening direction.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: September 7, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Hiroyuki Hagiwara, Katsuhiro Okubo, Kentaro Murakami
  • Publication number: 20210205274
    Abstract: An FGF21 production promoting agent containing, as an active ingredient, a compound represented by the following formula (1): wherein each of R1 and R2, which may be identical to or different from each other, represents, for example, a hydrogen atom; each of R3a, R3b, R4a, and R4b, which may be identical to or different from one another, represents, for example, a hydrogen atom or a halogen atom, or R3a and R3b or R4a and R4b may bond together to form an alkylenedioxy group; X represents an oxygen atom, a sulfur atom, or N—R5 (R5 represents, for example, a hydrogen atom or a C1-4 alkyl group); Y represents, for example, an oxygen atom, an S(O)l group (l is a number of from 0 to 2), or a carbonyl group; Z represents CH or N; n is a number of from 1 to 6; and m is a number from 2 to 6, a salt of the compound, or a solvate of the compound or the salt.
    Type: Application
    Filed: February 26, 2021
    Publication date: July 8, 2021
    Applicant: Kowa Co., Ltd.
    Inventors: Toshiaki TAKIZAWA, Kentaro MURAKAMI
  • Publication number: 20200398567
    Abstract: A liquid ejecting head including a nozzle configured to eject a liquid, a liquid flow path communicating with the nozzle, a communication chamber including a communication port configured to communicate with atmospheric air, a partitioning wall portion provided between the liquid flow path and the communication chamber, the partitioning wall portion including an opening portion that communicates the liquid flow path and the communication chamber to each other, and an elastic member closing the opening portion.
    Type: Application
    Filed: June 22, 2020
    Publication date: December 24, 2020
    Inventors: Yoshinori NAKAJIMA, Kentaro MURAKAMI, Yoshiki SUGAWARA, Hiroshige OWAKI
  • Publication number: 20200246315
    Abstract: An FGF21 production promoting agent containing, as an active ingredient, a compound represented by the following formula (1): wherein each of R1 and R2, which may be identical to or different from each other, represents, for example, a hydrogen atom; each of R3a, R3b, R4a, and R4b, which may be identical to or different from one another, represents, for example, a hydrogen atom or a halogen atom, or R3a and R3b or R4a and R4b may bond together to form an alkylenedioxy group; X represents an oxygen atom, a sulfur atom, or N—R5 (R5 represents, for example, a hydrogen atom or a C1-4 alkyl group); Y represents, for example, an oxygen atom, an S(O)l group (l is a number of from 0 to 2), or a carbonyl group; Z represents CH or N; n is a number of from 1 to 6; and m is a number from 2 to 6, a salt of the compound, or a solvate the compound or the salt.
    Type: Application
    Filed: April 22, 2020
    Publication date: August 6, 2020
    Applicant: Kowa Co., Ltd.
    Inventors: Toshiaki TAKIZAWA, Kentaro Murakami
  • Patent number: 10618289
    Abstract: A liquid ejecting apparatus includes a liquid ejecting head provided with a nozzle and a cap that executes capping for forming a first space to which the nozzle is open, in a surrounding manner. The cap includes a capping member that is provided with a suction hole and an atmosphere communicating hole which is configured to allow an inside of the cap to communicate with an outside, a liquid absorber that is disposed inside the capping member, and a reception member that is disposed inside the capping member so as to form a second space between the liquid absorber and the reception member. The second space is positioned closer to a side of the liquid ejecting head than to the liquid absorber in a posture of capping, and the atmosphere communicating hole is open to the second space.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: April 14, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Hiromichi Nakashima, Yuichi Urabe, Kentaro Murakami, Shuji Funada, Hisashi Sato, Akihiro Furuya
  • Publication number: 20200101754
    Abstract: A channel member includes a liquid emission port coupled to a liquid introduction section to emit liquid to the liquid introduction section, and a liquid feeding port that receives liquid from outside to feed the liquid to the liquid emission port. The liquid emission port and the liquid feeding port have the same opening direction.
    Type: Application
    Filed: September 26, 2019
    Publication date: April 2, 2020
    Inventors: Hiroyuki HAGIWARA, Katsuhiro Okubo, Kentaro Murakami
  • Publication number: 20200070520
    Abstract: A liquid ejecting head, a liquid ejecting apparatus, a liquid ejecting head cleaning method, and a liquid ejecting head manufacturing method, in which the liquid ejecting head includes a nozzle that ejects a liquid, a liquid supply path that supplies the liquid to the nozzle, a filter that filters the liquid flowing in the liquid supply path, and a liquid discharge path open in the liquid supply path between the filter and the nozzle. The liquid discharge path includes an on-off valve that opens and closes the opening. The on-off valve permits passage of the liquid from a liquid supply path side to a liquid discharge path side while blocking passage of the liquid from the liquid discharge path side to the liquid supply path side.
    Type: Application
    Filed: August 27, 2019
    Publication date: March 5, 2020
    Inventors: Kentaro MURAKAMI, Katsuhiro OKUBO, Hiroyuki HAGIWARA, Hiroyuki KOBAYASHI