Patents by Inventor Hiroaki Fujii
Hiroaki Fujii 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: 11951718Abstract: Provided is a laminate that has excellent low-temperature impact resistance and bursting pressure strength at high temperatures despite having a thick modified polyolefin layer. The laminate has two or more layers including an (a) layer and a (b) layer, the (a) layer includes an aliphatic polyamide composition (A), and the (b) layer includes a modified polyolefin (B). The modified polyolefin (B) includes a unit derived from a monomer based on an ?-olefin having 2-10 carbon atoms, and a unit derived from an unsaturated compound having at least one functional group selected from the group consisting of: unsaturated compounds having at least one group selected from the group consisting of a carboxyl group, a hydroxyl group, an epoxy group, an amino group, an amide group, an imide group, a nitrile group, a thiol group, and an isocyanate group; and derivatives of unsaturated compounds having a carboxyl group. The Shore hardness (D scale) of the modified polyolefin (B) as measured according to ASTM D2240 is 30-61.Type: GrantFiled: March 27, 2020Date of Patent: April 9, 2024Assignee: UBE CORPORATIONInventors: Kazutoshi Tsuboi, Daisuke Douyama, Hiroaki Fujii, Takaaki Kusumoto
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Publication number: 20230300507Abstract: Provided is a sound output device including a drive unit that has a sound output section inside and that is formed in an annular shape and an electric unit that has a drive control section inside and that is coupled to the drive unit. A space inside the drive unit is formed as an intake hole that takes in an external sound. The sound output device is attached to an ear with the drive unit inserted into a cavum concha. Accordingly, in a state in which the electric unit is coupled to the drive unit and the drive unit is inserted into the cavum concha to be attached to the ear, an external sound taken in from the intake hole that is the space inside the drive unit goes to the external auditory canal. Therefore, a stable and favorable wearing state on the ear can be ensured, and at the same time, a state in which an external sound is taken in naturally can be ensured.Type: ApplicationFiled: April 30, 2021Publication date: September 21, 2023Inventors: HIROAKI FUJII, KENTARO KATO, TOMOHIRO ITO
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Publication number: 20230094517Abstract: To increase an effect of absorbing an impact load from a vehicle front side. A vehicle-body structure includes a left-side suspension support member supporting a front suspension, a center frame disposed higher than and away from a floor panel at a vehicle-width-direction central portion of an occupant space and extending in a vehicle front-rear direction, a left-side front frame connected to a front portion of the center frame and extending to the left-side suspension support member, a right-side front frame connected to the front portion of the center frame and extending to a right-side suspension support member, and a connection member that connects the floor panel and at least one of a rear portion of the left-side front frame, a rear portion of the right-side front frame, and the front portion of the center frame.Type: ApplicationFiled: September 8, 2022Publication date: March 30, 2023Applicant: Mazda Motor CorporationInventors: Takuma INAMI, Nobuyuki NAKAYAMA, Hiroyuki BABA, Hiroaki FUJII
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Publication number: 20230094186Abstract: To decrease the retraction amount of a traveling motor at front collision. A vehicle-body structure includes a floor panel constituting a floor of an occupant space including a seat on which a passenger sits, a center frame disposed to be higher than and away from the floor panel at a vehicle-width-direction central portion of the occupant space and extending in a vehicle front-rear direction, and a connecting member extending upward from the floor panel, having an upper portion fixed to the center frame, and connecting the center frame to the floor panel. A traveling motor is arranged on a vehicle front side of the connecting member.Type: ApplicationFiled: September 8, 2022Publication date: March 30, 2023Applicant: Mazda Motor CorporationInventors: Takuma INAMI, Nobuyuki NAKAYAMA, Hiroyuki BABA, Hiroaki FUJII
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Patent number: 11525998Abstract: The objective lens unit includes, a front lens group having a negative refractive power, a diaphragm, and a rear lens group having a positive refractive power, in order from an object side. The front lens group includes a negative lens having a concave surface facing an image surface side, and a positive lens having a convex surface facing the object side, and the rear lens group includes a positive lens having a convex surface facing the image surface side and a cemented lens in which a positive lens and a negative lens are cemented. The endoscope objective lens unit satisfies ?1.6<fF/fR<?1.2 and ?1.0<SF5<?0.5. fF and fR are the focal lengths of the front lens group and the rear lens group, SF5 is (R51+R52)/(R51?R52), and R51 and R52 are respectively the curvature radiuses of surfaces.Type: GrantFiled: September 7, 2018Date of Patent: December 13, 2022Assignee: HOYA CORPORATIONInventors: Hiroaki Fujii, Sachiko Nasu
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Patent number: 11487101Abstract: The objective lens unit includes, a front lens group having a negative refractive power, a diaphragm, and a rear lens group having a positive refractive power, in order from an object side. The front lens group includes a negative lens having a concave surface facing an image surface side, and a positive lens having a convex surface facing the object side, and the rear lens group includes a positive lens having a convex surface facing the image surface side and a cemented lens in which a positive lens and a negative lens are cemented. The endoscope objective lens unit satisfies ?1.6<fF/fR<?1.2 and ?1.3<f3/fF<?0.7. Note that fF and fR are focal lengths of the entire system of the front lens group and the rear lens group, and f3 is a focal length of a positive lens, in the rear lens group.Type: GrantFiled: September 7, 2018Date of Patent: November 1, 2022Assignee: HOYA CORPORATIONInventors: Hiroaki Fujii, Sachiko Nasu
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Publication number: 20220169000Abstract: Provided is a laminate that has excellent low-temperature impact resistance and bursting pressure strength at high temperatures despite having a thick modified polyolefin layer. The laminate has two or more layers including an (a) layer and a (b) layer, the (a) layer includes an aliphatic polyamide composition (A), and the (b) layer includes a modified polyolefin (B). The modified polyolefin (B) includes a unit derived from a monomer based on an ?-olefin having 2-10 carbon atoms, and a unit derived from an unsaturated compound having at least one functional group selected from the group consisting of: unsaturated compounds having at least one group selected from the group consisting of a carboxyl group, a hydroxyl group, an epoxy group, an amino group, an amide group, an imide group, a nitrile group, a thiol group, and an isocyanate group; and derivatives of unsaturated compounds having a carboxyl group. The Shore hardness (D scale) of the modified polyolefin (B) as measured according to ASTM D2240 is 30-61.Type: ApplicationFiled: March 27, 2020Publication date: June 2, 2022Applicant: UBE INDUSTRIES, LTD.Inventors: Kazutoshi TSUBOI, Daisuke DOUYAMA, Hiroaki FUJII, Takaaki KUSUMOTO
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Patent number: 11332835Abstract: A hydrogen system includes: a generator which generates hydrogen-containing gas; a storage which stores the hydrogen-containing gas generated by the generator; a first gas passage which connects the generator and the storage; a housing which houses the generator, the storage and the first gas passage; a second gas passage in which the hydrogen-containing gas discharged from the first gas passage to an outside of the housing flows; a first valve provided to the second gas passage; a third gas passage in which the hydrogen-containing gas discharged from the storage to the outside of the housing flows; a second valve provided to the third gas passage; and a controller which opens at least one of the first valve and the second valve.Type: GrantFiled: February 8, 2019Date of Patent: May 17, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yuuichi Yakumaru, Hiroaki Fujii, Atsushi Shimizu
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Patent number: 11332836Abstract: A hydrogen system including: a hydrogen production apparatus that produces hydrogen; a hydrogen storage apparatus that stores produced hydrogen; a first flow path, wherein hydrogen discharged from the hydrogen production apparatus flows into the hydrogen storage apparatus through the first flow path; a second flow path, wherein hydrogen discharged from the hydrogen storage apparatus flows into a hydrogen-using apparatus through the second flow path; a casing that houses the hydrogen production apparatus, the hydrogen storage apparatus, the first flow path and at least part of the second flow path; a third flow path, wherein hydrogen discharged from at least one of the hydrogen production apparatus, the hydrogen storage apparatus, the first flow path and the at least part of the second flow path flows outside the casing through the third flow path; a first valve provided in the third flow path; and a controller that opens the first valve.Type: GrantFiled: February 8, 2019Date of Patent: May 17, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yuuichi Yakumaru, Hiroaki Fujii, Atsushi Shimizu
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Patent number: 11254082Abstract: The present invention is a multi-layer tube comprising at least two layers having an (a) layer containing an aliphatic polyamide composition (A) and a (b) layer containing a semi-aromatic polyamide composition (B) containing a specific semi-aromatic polyamide (B1), wherein the aliphatic polyamide composition (A) contains a specific amount of an aliphatic polyamide (A1) and a specific amount of an elastomer polymer (A2) containing an unsaturated compound having a carboxyl group and/or acid anhydride group, and the product of the terminal amino group concentration [X] of the aliphatic polyamide (A1) per g of the aliphatic polyamide composition (A) and the total concentration [Y] of the carboxyl group and acid anhydride group of the elastomer polymer (A2) per g of the aliphatic polyamide composition (A) is a specific amount.Type: GrantFiled: September 3, 2014Date of Patent: February 22, 2022Assignee: UBE INDUSTRIES, LTD.Inventors: Koji Nakamura, Shigekazu Okamura, Hiroaki Fujii
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Patent number: 11219961Abstract: It is a purpose of the present invention to provide a wire electrical discharge machining system allowing a wire electrical discharge machining device and a robot to operate in conjunction with each other with high efficiency. A wire electrical discharge machining system 1 includes wire electrical discharge machining devices 7, 11, and 15, and a robot unit 17 that mounts a workpiece on the wire electrical discharge machining device. The wire electrical discharge machining devices 7, 11, and 15 may each perform either rough machining with supported cores or finishing machining after the cores are removed. Subsequently, core processing may be performed by means of a corresponding dedicated apparatus. Also, the core processing may be performed by means of a single common apparatus.Type: GrantFiled: September 14, 2018Date of Patent: January 11, 2022Assignee: Seibu Electric & Machinery Co., Ltd.Inventors: Takashi Mitsuyasu, Yoshihiro Ito, Takayasu Sakatani, Hiroaki Fujii
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Patent number: 11213905Abstract: A wire electrical discharge machining system allows a wire electrical discharge machining device and a robot to operate in conjunction with each other with high efficiency. A wire electrical discharge machining system 1 includes wire electrical discharge machining devices 7, 11, and 15, and a robot unit 17 that mounts a workpiece on the wire electrical discharge machining device. The wire electrical discharge machining devices 7, 11, and 15 may each perform either rough machining with supported cores or finishing machining after the cores are removed. Subsequently, core processing may be performed by a corresponding dedicated apparatus. Also, the core processing may be performed by a single common apparatus. The robot unit 17 mounts and collects the workpiece so as to allow these wire electrical discharge machining apparatuses to effectively operate, thereby providing wire electrical discharge machining with improved efficiency for the overall system.Type: GrantFiled: January 31, 2018Date of Patent: January 4, 2022Assignee: Seibu Electric & Machinery Co., Ltd.Inventors: Takashi Mitsuyasu, Yoshihiro Ito, Takayasu Sakatani, Hiroaki Fujii
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Patent number: 11146142Abstract: Noise caused by a gap between a rotor and a plate can be suppressed even when there are dimensional variations in members or assembly states. In a configuration of a stepping motor including front side and end side stator assemblies (200, 300), a rotor (400) provided with a rotor member (402) and a shaft (403) that are accommodated in the stator assemblies (200, 300), and a front plate (210) and an end plate (310) that are arranged on both sides of the stator assemblies (200, 300) in an axial direction, and are configured to couple the stator assemblies (200, 300), a projection (700) in an annular shape is provided on a surface of the front plate (210) facing the rotor member (402) to protrude toward the rotor member (402), a coil spring (800) that is interposed between the front plate (210) and the rotor member (402) is accommodated in the inner side of the projection (700), and the rotor (400) is urged toward the end plate (310) by the coil spring to be elastically pressed against the end plate (310).Type: GrantFiled: March 2, 2018Date of Patent: October 12, 2021Assignee: MINEBEA MITSUMI INC.Inventors: Suguru Okura, Nobuyuki Sueyoshi, Kazuo Muramatsu, Shoji Yoshitomi, Hiroaki Fujii
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Publication number: 20210187645Abstract: It is a purpose of the present invention to provide a wire electrical discharge machining system allowing a wire electrical discharge machining device and a robot to operate in conjunction with each other with high efficiency. A wire electrical discharge machining system 1 includes wire electrical discharge machining devices 7, 11, and 15, and a robot unit 17 that mounts a workpiece on the wire electrical discharge machining device. The wire electrical discharge machining devices 7, 11, and 15 may each perform either rough machining with supported cores or finishing machining after the cores are removed. Subsequently, core processing may be performed by means of a corresponding dedicated apparatus. Also, the core processing may be performed by means of a single common apparatus.Type: ApplicationFiled: January 31, 2018Publication date: June 24, 2021Inventors: Takashi MITSUYASU, Yoshihiro ITO, Takayasu SAKATANI, Hiroaki FUJII
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Patent number: 10976582Abstract: A display which thickness is allowed to be reduced is provided. A display includes: a display panel; and a back-face member having rigidity and provided on a back face of the display panel, the back-face member covering the back face, or the back face and other part of the display panel.Type: GrantFiled: February 26, 2020Date of Patent: April 13, 2021Inventors: Hiroaki Fujii, Satoshi Mukoyama, Soya Araki, Hisanori Tsuboi, Hidetomo Miyake, Takeshi Yamamoto
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Patent number: 10898061Abstract: An endoscope magnification optical system includes, in order from an object side, a first lens group having a negative power, a second lens group having a positive power, and a third lens group having a meniscus lens with a convex surface facing the object side. A distance from a lens surface of the first lens group that is nearest to the object side to an image surface is kept constant while the second lens group is moved in an optical axis direction with respect to the first lens group and the third lens group, which are fixed lens groups, and thereby an optical image is magnified.Type: GrantFiled: February 21, 2017Date of Patent: January 26, 2021Assignee: HOYA CORPORATIONInventors: Hiroaki Fujii, Sachiko Nasu
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Publication number: 20200285040Abstract: The objective lens unit includes, a front lens group having a negative refractive power, a diaphragm, and a rear lens group having a positive refractive power, in order from an object side. The front lens group includes a negative lens having a concave surface facing an image surface side, and a positive lens having a convex surface facing the object side, and the rear lens group includes a positive lens having a convex surface facing the image surface side and a cemented lens in which a positive lens and a negative lens are cemented. The endoscope objective lens unit satisfies ?1.6<fF/fR<?1.2 and ?1.3<f3/fF<?0.7. Note that fF and fR are focal lengths of the entire system of the front lens group and the rear lens group, and f3 is a focal length of a positive lens, in the rear lens group.Type: ApplicationFiled: September 7, 2018Publication date: September 10, 2020Applicant: HOYA CORPORATIONInventors: Hiroaki FUJII, Sachiko NASU
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Publication number: 20200201021Abstract: The objective lens unit includes, a front lens group having a negative refractive power, a diaphragm, and a rear lens group having a positive refractive power, in order from an object side. The front lens group includes a negative lens having a concave surface facing an image surface side, and a positive lens having a convex surface facing the object side, and the rear lens group includes a positive lens having a convex surface facing the image surface side and a cemented lens in which a positive lens and a negative lens are cemented. The endoscope objective lens unit satisfies ?1.6<fF/fR<?1.2 and ?1.0 <SF5<?0.5. fF and fR are the focal lengths of the front lens group and the rear lens group, SF5 is (R51+R52)/(R51?R52), and R51 and R52 are respectively the curvature radiuses of surfaces.Type: ApplicationFiled: September 7, 2018Publication date: June 25, 2020Applicant: HOYA CORPORATIONInventors: Hiroaki FUJII, Sachiko NASU
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Publication number: 20200192143Abstract: A display which thickness is allowed to be reduced is provided. A display includes: a display panel; and a back-face member having rigidity and provided on a back face of the display panel, the back-face member covering the back face, or the back face and other part of the display panel.Type: ApplicationFiled: February 26, 2020Publication date: June 18, 2020Applicant: Sony CorporationInventors: Hiroaki Fujii, Satoshi Mukoyama, Soya Araki, Hisanori Tsuboi, Hidetomo Miyake, Takeshi Yamamoto
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Patent number: 10663092Abstract: Provided is a multilayer tube that has a layer containing an aliphatic polyamide (such as Polyamide 11 or Polyamide 12), a layer containing a Polyamide 6 composition or Polyamide 6/66/12 composition, a layer containing a saponified ethylene-vinyl acetate copolymer, and a layer containing a semi-aromatic polyamide composition that contains a semi-aromatic polyamide having a specific structure, and further has a fluorine-containing polymer in which a functional group having reactivity with an amino group is introduced into the molecular chain thereof.Type: GrantFiled: September 11, 2015Date of Patent: May 26, 2020Assignee: UBE INDUSTRIES, LTD.Inventors: Koji Nakamura, Takeru Abe, Hiroaki Fujii