Canon Kabushiki Kaisha

Jgc Corporation

Global Nuclear Fuel-japan Co., Ltd.

Akihiro Yamanaka

Keiichiro Tsukuda

Naoki Tashiro

Yasuo Kotaki

Sadayuki Sugama

Yoshiyuki Imanaka

Masahiko Kubota

Hiroyuki Ishinaga

Hiroyuki Inoue

Toshihiko Ujita

Akira Goto

Soichi Hiramatsu

Hiroki Tajima

Yutaka Koizumi

Yasushi Iijima

Hiroyuki Maeda

Teruo Ozaki

Minoru Nozawa

Teruo Arashima

Itaru Watanabe

Hiroshi Iida

Toshihiro Sasaki

Shuichi Murakami

Takashi Nojima

Takeshi Iwasaki

Hitoshi Nakamura

Akira Kida

Hideki Yamaguchi

Hiroshi Yamada

Torachika Osada

Asao Saito

Hideaki Kawakami

Tomoyuki Inoue

Takeshi Kono

Wataru Takahashi

Masami Ikeda

Hajime Yamamoto

Ichiro Saito

Seiichiro Karita

Ryoji Inoue

Takashi Watanabe

Eiichiro Shimizu

Kazuaki Masuda

Masahiko Higuma

Masahiko Ogawa

Kimiyuki Hayasaki

Yoichi Taneya

Norio Ohkuma

Hideo Saikawa

Michinari Mizutani

Mitsuru Kurata

Hiroto Matsuda

Jun Hinami

Megumi Saito

Kazunori Suzuki

Motoaki Sato

Tetsuto Kageyama

Takahisa Kawamura

Takeaki Shima

Hiroyuki Sugiyama

Takeshi Yamaguchi

Muga Mochizuki

Akira Tanabe

Junji Shimoda

Yasunori Takei

Ryoji Oohashi

Shinji Watanabe

Tomoyuki Nagase

Fumio Ichikawa

Hiroshi Kuribayashi

Masaru Shibata

Masami Toshikuni

Michinari Mazutani

Takao Kageyama

Yuji Iwamoto

Yasuhiro Masuhara

Takanori Fukahori

Akira Mototani

Heiichiro Tsukuda

An ink container for containing ink to be supplied to an ink jet head to which the ink container is detachably mountable, includes an ink supply port for supplying the ink to the ink jet head; a air vent for fluid communication with ambience; a claw-like projection provided on a first side of the ink container; a latching lever provided on a second side opposite from the ink container, the latching lever being resiliently supported on the ink container and having a latching claw.

Ink container for ink jet printer, holder for the container, carriage for the holder, and ink jet printer

A print head, which ejects ink by using a method whereby a bubble generated by a heat generating element communicates with the air, and for which the occurrence of cavitation is deterred and the durability is improved, is provided. According to the print head, a bubble grows until the maximum volume is attained, and then, at a volume reduction step, communicates with the air. As a result, a liquid in a bubble generation chamber is ejected. An ejection port and the heat generating element are arranged so that the center of the ejection port is shifted away from the center of the heat generating element in a direction leading from an ink supply port to the ejection port.

Liquid ejection head and liquid ejection method

A liquid-discharge recording head includes large nozzles for discharging large liquid drops and medium and small nozzles for discharging medium and small liquid drops that are smaller than the large liquid drops. The large nozzles are arranged on one side of an ink-supply opening and the medium and small nozzles are arranged on the other side of the ink-supply opening. The number of large nozzles is greater than the number of medium and small nozzles, and the liquid-discharge recording head performs high-speed printing using the large nozzles, high-speed photo printing using the medium and small nozzles, and high-quality photo printing using the small nozzles.

Liquid-discharge recording head

An ink container for containing ink to be supplied to an ink jet head to which the ink container is detachably mountable, inclues an ink supply port for supplying the ink to the ink jet head; a air vent for fluid communication with ambience; a claw-like projection provided on a first side of the ink container; a latching lever provided on a second side opposite from the ink container, the latching lever being resiliently supported on the ink container and having a latching claw.

Ink container for ink jet printer, holder for the container carriage for the holder and ink jet printer

Ink container for ink jet printer, holder for the container, carriage for the holder and ink jet printer

A compact liquid ejection recording head capable of forming high-quality images at high speed includes large nozzles for ejecting large droplets, medium nozzles for ejecting medium droplets, and small nozzles for ejecting small droplets. The large nozzles are arranged on one side of an ink supply port, while the small nozzles and the medium nozzles are arranged on the other side of the ink supply port. The number of the small nozzles is larger than that of the medium nozzles, and that of the large nozzles. This allows high-quality and high-speed printing using the small nozzles, high-speed photo printing using the medium and small nozzles, and high-speed printing using the large nozzles.

Liquid ejection recording head

An ink jet recording apparatus comprises a recording head including a discharge port for discharging ink, a first liquid chamber at the upstream side in the direction of ink flow toward the discharge port, and a second liquid chamber at the downstream side, an ink tank for containing ink to be supplied to the recording head, an ink supply tube for causing the ink tank to communicate with the recording head, a shut-off valve provided in the ink supply tube and opening or closing the ink supply tube, a cap for covering the discharge port; and a suction pump for forcedly discharging the ink in the recording head from the discharge port when the cap covers the discharge port. The shut-off valve is opened when the first and second liquid chambers are reduced to respectively desired pressures by the suction pump in a state where the cap covers the discharge port and the shut-off valve is closed, whereby the ink in the ink tank is supplied through the ink supply tube to the first and second liquid chambers.

Ink jet recording apparatus

The present invention provides a storing structure for storing an ink jet head including a nozzle communicated with an opening for discharging liquid, a liquid storing portion for storing the liquid to be supplied to the nozzle and a liquid introduction portion for introducing the liquid into the liquid storing portion from exterior, wherein, in the ink jet head, air is housed in the liquid storing portion and the liquid is contained at least in the nozzle, and a cap unit including an elastic cap for covering an area of the opening and a liquid absorbing member disposed in the elastic cap is closely contacted with and attached, around the opening, to a face in which the opening is formed, and the liquid introduction portion is communicated with atmosphere at least when inner pressure of the liquid storing portion is increased, thereby maintaining a space within the cap unit to a wetting condition.

Ink jet head storing structure and liquid filling method

The present invention provides a storing structure for storing an ink jet head comprising a nozzle communicated with an opening for discharging liquid, a liquid storing portion for storing the liquid to be supplied to the nozzle, and a liquid introduction portion for introducing the liquid into the liquid storing portion from exterior, wherein, in the ink jet head, air is housed in the liquid storing portion and the liquid is contained at least in the nozzle, and a cap unit including an elastic cap for covering an area of the opening and a liquid absorbing member disposed in the elastic cap is closely contacted with and attached, around the opening, to a face in which the opening is formed, and the liquid introduction portion is communicated with atmosphere at least when inner pressure of the liquid storing portion is increased, thereby maintaining a space within the cap unit to a wetting condition.

A liquid discharge head substrate used for a liquid discharge head is adapted to discharge liquid by applying discharge energy to the liquid. The substrate is a semiconductor substrate including an energy conversion element for converting electric energy into the discharge energy and a function element made of a ferroelectric material.

Liquid discharge head substrate, liquid discharge head, liquid discharge apparatus having these elements, manufacturing method of liquid discharge head, and driving method of the same

A cartridge is detachably mountable to a holder of an ink jet recording apparatus, so as to be freely reciprocatable to scan across a recording medium and record thereon by discharging ink. The cartridge is defined by a cartridge main body, and is provided with a recording head for discharging ink from plural nozzles formed in parallel on a lower face of the cartridge main body facing the recording medium. A front face of the cartridge main body is provided with an electrical connection portion having cartridge electrodes, which are electrically connectable with corresponding electrodes of the holder. A rear face opposite to the front face is provided with an ink connection portion connectable to corresponding supply ports which supply ink to the recording head from a main tank installed elsewhere on the ink jet recording apparatus. With the cartridge thus structured, the force exerted for connection to the supply port does not affect the precision with which the cartridge is mounted on the holder.

Cartridge with opposed electrical and ink connection portions, and carriage and ink jet recording apparatus for same

A fuel assembly lower tie-plate with better performance in capturing linearly elongated foreign substances. The lower tie-plate has a screening plate positioned below the network section in the lower tie-plate cavity. The screening plate is arranged substantially horizontally so that the lower tie-plate cavity is divided into upper and lower parts by the screening plate. Tubular filters are attached to the screening plate so that the tubular filters have openings below and above the screening plate. Top ends of the tubular filters are closed, and the openings above the screening plate are formed in side walls of the tubular filters. The lower tie-plate may be assembled by combining the screening plate, the network section and the nozzle section together, after the tubular filters have been attached to the screening plate.

Nuclear fuel assembly lower tie-plate and method of its assembling

Growing community of inventors

Kanagawa, Japan

Akihiro Yamanaka