Canon Kabushiki Kaisha

Koji Yamazaki

Toshiyuki Ehara

Masaya Kawada

Shigenori Ueda

Kazuyuki Ueda

Tetsuya Karaki

Hironori Ohwaki

Masahiro Fushimi

Shuji Aoki

Hironori Owaki

Yuji Nakayama

Hideaki Mitsutake

Yasue Sato

Kunimasa Kawamura

Yoshihiro Yanagisawa

Nobuhiro Ito

Tomoya Onishi

Miki Tamura

Tatsuyuki Aoike

Takehito Yoshino

Takaaki Kaya

Toshimitsu Kariya

Yoichi Ando

Hitoshi Murayama

Kinya Kamiguchi

Hiroaki Niino

Taro Hiroike

Hirokazu Otoshi

Norihiro Suzuki

Hiroyuki Kobayashi

Ichiro Nomura

Kiyoshi Sakai

Takao Ogura

Teigo Sakakibara

Yoshio Suzuki

Naoto Fujimura

Yasuhiro Hamamoto

Junya Kawase

Yutaka Udagawa

Koichi Tsunoda

Atsushi Hori

Masaaki Hiro

Yoichi Kawamorita

Yukihiro Inoue

Yasuyuki Todokoro

Nobuyuki Kume

Nobuo Nakazawa

Masaru Nakagawa

Takashi Date

Noriko Hirayama

In an X-ray generating apparatusin which an X-ray tubeis anode-grounded to a protruding portionof a container, electrical discharge between the X-ray tubeand the containeris reduced. The containerincludes the protruding portionin such a way that, in the axial direction Dt, a bent portionis positioned between an anode-side joint portionwhere the insulating tubeand the anodeare joined to each other and a cathode-side joint portionwhere the insulating tubeand the cathodeare joined to each other.

X-ray generating apparatus

Provided is an X-ray generating apparatus, which includes: an X-ray generating tube configured to emit X-rays through a first window; an outer case configured to contain the X-ray generating tube and provided with a second window transmitting the X-rays at a position facing the first window; an insulating fluid with which an unoccupied space of the outer case is filled; an insulating member located between the first window and the second window and provided with an opening in an irradiation area of the X-ray through the first window; and an insulating third window removably fit into the opening of the insulating member, wherein a linear expansion coefficient of the third window is greater than a linear expansion coefficient of the insulating member, and the third window and the first window face each other via a gap through which the insulating fluid is flowable.

X-ray generating apparatus and radiography system

The present invention relates to a radiation generating tube. The radiation generating tube includes an envelope including an insulating tubular member having at least two openings, a cathode connected to one of the openings of the insulating tubular member, and an anode connected to the other of the openings of the insulating tubular member. At least one of the cathode and the anode and the insulating tubular member are bonded at a bonded portion with an electrically conductive bonding member; and the bonded portion bonded with the electrically conductive bonding member is coated with a dielectric layer.

Radiation generating tube, radiation generating apparatus, radiography system and manufacturing method thereof

Both the size reduction and the increase in breakdown voltage of a high-voltage isolation transformer are realized, which is to be used in an insulating liquid in an X-ray generating apparatus. In the isolation transformer, an annular core and a primary coil wound around the annular core are housed in a first container, and a secondary coil is wound around the first container. A first opening through which an insulating liquid flows is provided in the first container.

Isolation transformer, and X-ray generating apparatus and radiography system including the same

A radiation generating tube includes a cathode connected to an electron emitting member; an anode including a target; and an insulating tube disposed between the cathode and the anode to surround the electron emitting member. The insulating tube includes an electrical potential defining member at an intermediate portion of the insulating tube in a longitudinal axis direction of the insulating tube. The electrical potential defining member is electrically connected to an electrical potential defining unit. The potential of the electrical potential defining member is controlled to be higher than that of the cathode and lower than that of the anode. A boundary of the electrical potential defining member and the insulating tube does not face a portion of the anode exposed to the inside of the radiation generating tube.

Radiation generating tube and radiation generating apparatus using the same

The present invention provides a radiation generating tube which suppresses electrical charging of an inner wall of an insulating tube attributable to electron emission from a junction between the insulating tube and a cathode and which has improved voltage withstand capability. The radiation generating tube comprising: a hollow insulating tube; a cathode and an anode respectively bonded to both ends of the insulating tube; and an electron emission source provided on the cathode, the radiation generating tube having a vacuum interior space. The electron emission source includes an electron emitting portion in the interior space, and the insulating tube includes a protrusion that protrudes into the interior space.

Radiation generating tube

A radiation generating tube includes a vacuum envelope formed by an insulating tube, a cathode and an anode. At least one of the cathode and the anode is bonded to the insulating tube via a conductive bonding material disposed between bonded surfaces facing each other. The conductive bonding material is partially protruding from between the bonded surfaces to an outer peripheral surface or an inner peripheral surface of the insulating tube. A concave portion is formed on the outer peripheral surface or the inner peripheral surface of the insulating tube adjacent to a bonded surface on an insulating tube side, and a distal end of a conductive bonding material protruding from between bonded surfaces is accommodated in the concave portion.

Radiation generating tube, radiation generating unit, and radiation image taking system

Provided is an X-ray generator comprising an X-ray tube including a cylindrical body; an electron source in the body; a target at an end of the X-ray tube facing the electron source, the target generating X-rays by irradiation with electrons; a container in which the X-ray tube is arranged; insulating liquid filled between the X-ray tube and the container; and

X-ray generator tube having improved cooling container and X-ray imaging apparatus including the same

The present invention relates to a radiation generating apparatus which includes an envelope provided with a first window through which radiation is transmitted, a radiation tube housed in the envelope and provided with a second window through which the radiation is transmitted, the second window being located at a position opposite the first window, and an insulating fluid adapted to fill the space between the inner wall of the envelope and the radiation tube. Plural plates are arranged side by side between the first window including its periphery and the second window including its periphery, and overlapping one another with gaps between them. The gaps are formed among the plates, and thereby the withstanding voltage between the first window and second window is made larger.

Radiation generating apparatus and radiation imaging apparatus

A radiation generating tube, which includes: a cathode connected to an electron gun structure; an anode including a target and configured to generate radiation; and a tubular side wall disposed between the cathode and the anode to surround the electron gun structure; and an electrical potential defining member disposed at an intermediate portion of the tubular side wall between the anode and the cathode. The electrical potential defining member is electrically connected to an electrical potential defining unit via an electrical resistance member or an inductor, and a potential of the electrical potential defining member is defined to be a higher potential than a potential of the cathode and to be a lower potential than a potential of the anode.

In a display panel, a conductive member subjected to a prescribed electric potential lower than an anode potential is disposed on a first insulating substrate at a location spaced apart from an anode terminal subjected to the anode potential. An insulating member is disposed on the conductive member such that the insulating member includes a part located closer to the anode terminal than an end, on a side facing the anode terminal, of the conductive member and such that a gap is provided between the part and the first insulating substrate.

Display panel, display apparatus, television apparatus, and method of producing the display panel

A conductive member is provided, surrounding a terminal, on a substrate so that a portion of the conductive member is positioned between wiring and the terminal. The conductive member includes, at an inner edge thereof, multiple portions whose distances from the terminal are different. The multiple portions include a portion whose distance from the terminal is shorter than that of a portion among the plurality of portions that is closest to the wiring.

Display panel, display apparatus, and television apparatus for performing display using light emission

A light-emitting substrate includes a substrate, a plurality of light-emitting members arranged on the substrate in a matrix pattern, a partition arranged between respective adjacent ones of the plurality of light-emitting members and projecting relative to a surface of the substrate to a position higher than the light-emitting members, a plurality of conductors each covering at least one of the light-emitting members and arranged in a matrix pattern in a mutually spaced relation, and a resistor electrically interconnecting the plurality of conductors. The resistor has a column stripe portion extending in a column direction, and the column stripe portion is positioned on the partition.

Light-emitting substrate and display apparatus using the same

There is provided a light emitter substrate which can suppress halation by forming a rib between adjacent light-emitting members of respectively different light emitting colors, and at the same time can withdraw a potential difference when a discharge occurs between adjacent metal backs, thereby achieving a desired discharging current suppressing capability. For that purpose, the plural parallel ribs protruding from a substrate are formed, a phosphor is provided between the adjacent ribs, plural divided metal backs are disposed respectively on the phosphors in the direction along the ribs, the metal back is connected to a feeding resistor on the rib by means of a connection conductor, and the feeding resistor is covered by a high-resistance cover member.

Light emitter substrate and image displaying apparatus using light emitter substrate

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Ayase, Japan

Koji Yamazaki