Patents by Inventor Masayuki Tsuneoka
Masayuki Tsuneoka 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: 9346067Abstract: A spray gun including: a nozzle provided with a fixed-side restricting section; a needle valve inserted inside the nozzle and provided with a valve portion such that an aperture is formed radially therebetween; an elastic seal member that comes in contact and is elastically deformed in an axial direction between the nozzle and the needle valve; and a straight joint formed by a female joint provided on a nozzle hole of the nozzle and a male joint provided on the valve portion. The straight joint is arranged such that the male joint fits inside the female joint before the elastic seal member comes in contact between the nozzle and the needle valve as well as after the aperture becomes the smallest, and the jointed state is retained until the elastic seal member comes in contact and is elastically deformed therebetween.Type: GrantFiled: April 16, 2015Date of Patent: May 24, 2016Assignee: SUMITOMO RIKO COMPANY LIMITEDInventors: Keisuke Ito, Masayuki Tsuneoka
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Publication number: 20150217309Abstract: A spray gun including: a nozzle provided with a fixed-side restricting section; a needle valve inserted inside the nozzle and provided with a valve portion such that an aperture is formed radially therebetween; an elastic seal member that comes in contact and is elastically deformed in an axial direction between the nozzle and the needle valve; and a straight joint formed by a female joint provided on a nozzle hole of the nozzle and a male joint provided on the valve portion. The straight joint is arranged such that the male joint fits inside the female joint before the elastic seal member comes in contact between the nozzle and the needle valve as well as after the aperture becomes the smallest, and the jointed state is retained until the elastic seal member comes in contact and is elastically deformed therebetween.Type: ApplicationFiled: April 16, 2015Publication date: August 6, 2015Inventors: Keisuke ITO, Masayuki TSUNEOKA
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Patent number: 5485500Abstract: A digital X-ray imaging system having an X-ray generator, an X-ray generator controller for controlling the X-ray generator, an X-ray detecting unit for detecting an X-ray transmitted through a subject, the X-ray detecting unit having an X-ray grid for shielding a scattered X-ray, a signal processor for acquiring a signal from the X-ray detecting unit and processing the signal to obtain a digital X-ray image of the subject, and a display device for displaying an image of the subject obtained by the signal processor. The system is provided with a position changing unit for changing a relative position between the X-ray detecting unit and the subject, a position change controller for controlling the position changing unit, and an imaging-sequence controller for controlling the position change controller and the X-ray generator controller.Type: GrantFiled: January 26, 1994Date of Patent: January 16, 1996Assignee: Hitachi Medical CorporationInventors: Rika Baba, Ken Ueda, Hisatake Yokouchi, Yoichi Onodera, Keiji Umetani, Masayuki Tsuneoka
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Patent number: 5023896Abstract: An X-ray television apparatus applies an X-ray to an object to be inspected, converts the X-ray projection image of the object into an optical image by a fluorescent screen or an X-ray image intensifier, picks up the optical image by a TV camera, displays the video signal obtained by a TV monitor for fluoroscopic monitoring, and records radiograph of the object by using the video signal. Avalanche multiplication is caused on the photoconductive layer of the image pick-up tube of the TV camera so as to enable monitoring or imaging with high sensitivity at a low X-ray dose rate.Type: GrantFiled: May 25, 1989Date of Patent: June 11, 1991Assignee: Hitachi-Medical CorporationInventors: Hisatake Yokouchi, Yukio Takasaki, Tadaaki Hirai, Kouichi Koike, Masayuki Tsuneoka, Yoichi Onodera, Takakazu Funo
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Patent number: 5022063Abstract: In a real-time digital radiographic apparatus, an image is picked up by means of a TV camera. In a fluoroscopic monitoring mode, an output of the TV camera is displayed on a display in real time. In a radiographic imaging mode, the output of the TV camera is A/D converted, subjected to a necessary image processing and held as image data for diagnosis. In the fluoroscopic monitoring mode, a beam scanning for an image pickup tube corresponding to an NTSC system is performed whereas in the radiographic imaging mode a high-density and low-speed beam scanning can be selected in which the number of scanning lines is increased and the frame rate is lowered.Type: GrantFiled: January 23, 1990Date of Patent: June 4, 1991Assignee: Hitachi Medical CorporationInventors: Hisatake Yokouchi, Yoichi Onodera, Takakazu Funo, Masayuki Tsuneoka
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Patent number: 4942468Abstract: In an image input device, in which an image is photographed by a television camera using a plurality of operational modes having numbers of scanning lines different from each other, a video signal thus obtained is subjected to an analogue to digital conversion and a digital image signal is stored, one of a plurality of sampling clocks obtained by dividing a main clock is selected; the analogue to digital conversion is effected by using the sampling clock thus selected; and at the same time synchronization signals of the horizontal and the vertical scannings of the television camera are formed by counting the selected sampling clock.Type: GrantFiled: April 26, 1989Date of Patent: July 17, 1990Assignee: Hitachi Medical CorporationInventors: Hisatake Yokouchi, Takakazu Huno, Yoichi Onodera, Kouichi Koike, Masayuki Tsuneoka
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Patent number: 4881124Abstract: An X-ray television apparatus in which an X-ray image which is obtained by an X-ray image intensifier is converted to an electrical signal by a television camera. This electrical signal is converted to a digital signal and stored into an image memory, and the angiographic imaging can be performed due to a differential process of data between two X-ray images. Either one of first, second, and third operating modes in which the scanning periods and the numbers of scanning lines of the television camera differ and a fourth operating mode to obtain the X-ray images by a further low X-ray dose and to simultaneously monitor the X-ray images can be selected. Thus, proper time resolution and spatial resolution according to a desired purpose can be obtained and the beam current of the image pickup tube of the television camera which is optimum in each operating mode is set.Type: GrantFiled: July 18, 1988Date of Patent: November 14, 1989Assignees: Hitachi, Ltd., Hitachi Medical CorporationInventors: Hisatake Yokouchi, Fumitaka Takahashi, Masayuki Tsuneoka
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Patent number: 4809071Abstract: A television camera device for obtaining an image of high resolution by making the number of scanning lines on the target plate of an image pickup tube about twice larger than that in the television standard system and making the scanning speed of electron beam at the surface of the target plate smaller than that in the television standard system, is disclosed in which an electric field intensity in a region between the target plate and a mesh electrode (namely, the fourth grid electrode) is made greater than or equal to 5.3 KV/cm, to improve the landing characteristics of scanning electron beam, thereby preventing the occurrence of the water fall phenomenon peculiar to a slow scanning operation.Type: GrantFiled: December 15, 1986Date of Patent: February 28, 1989Assignee: Hitachi, Ltd. & Hitachi Medical Corp.Inventors: Hisatake Yokouchi, Masanori Maruyama, Fumitaka Takahashi, Masayuki Tsuneoka