Ricoh Company, Ltd.

Kowa Company Limited

Nec Corporation

Hitachi-johnson Controls Air Conditioning, Inc.

Ricoh Company, Limted

Masahiro Tamura

Shuuya Nagasako

Nobuyoshi Suzuki

Akira Kunieda

Tomohiro Furuhashi

Junichi Tokita

Hiroshi Maeda

Kazuhiro Kobayashi

Naohiro Kikkawa

Hitoshi Hattori

Ichiro Ichihashi

Akihito Andoh

Makoto Hidaka

Tomoichi Nomura

Kenji Yamada

Junichi Iida

Hiromoto Saitoh

Takahiro Watanabe

Hiroki Okada

Keisuke Sugiyama

Tomomichi Hoshino

Junya Suzuki

Kyosuke Nakada

Kazuya Yamamoto

Kazunori Konno

Kiichiro Goto

Toshiaki Oda

Yasuo Niikura

Takeshi Doi

Shohichi Satoh

Yoshinori Kyotani

Yukiyoshi Yamazaki

Masahiro Nishikawa

Tatsuhiko Kodama

Yasushi Wada

Kazuya Tsutsui

Takashi Saito

Yuusuke Shibasaki

Takamasa Matsumoto

Kazuhiro Onogi

Youhei Niitsuma

Atsushi Kuriyama

Tomohiro Yoshizaki

Shingo Matsushita

Shunji Takemura

Henk Timmerman

Yukitaka Nakazato

Masao Ohkuchi

Takeo Deushi

Mingqiang Zhang

Tsutomu Toma

Yoshio Takahashi

Tsutomu Tohma

Ryo Takahashi

Hidetoshi Kojima

Kei Sasaki

Masami Shiratsuchi

Takashi Fukumoto

Mitsuteru Hirata

Kohjiroh Haga

Hendrik Timmerman

Takeshi Ohshima

Yuuta Mori

Satoru Takano

Toru Kanke

Yasushi Tsuruoka

Shintaro Matsumoto

Jiro Matsumoto

Yoshihiko Nakayama

Kazuhiko Kitano

Jun-ichi Iida

Hiroyuki Sonoki

Mingqiang Zang

Satoshi Saito

Tetsuya Ishikawa

Takeshi Sasaki

Seiichi Sato

Ikuhisa Okamoto

Kiichiroh Gotoh

Maria Elizabeth Zwaagstra

Hiroshi Kubo

Atsushi Okuyama

Naoyuki Ishikawa

Kenji Tamura

Shinji Asami

Hajime Yamada

Hiroyuki Ishiwata

Takahiro Kitamura

Tomoyuki Koshi

Manabu Shibasaki

Toshimi Mizoguchi

Kyoko Yasuoka

Masahiro Minato

Junko Totsuka

Yoshiharu Miyake

Masanori Ashikawa

Natsuyo Kumai

Koji Tsukii

A DC power supply unit is provided that allows for improving efficiency and reducing harmonic currents. A DC power supply unit includes: a bridge rectification circuit having diodes and MOSFETs; a reactor that is arranged between the AC power supply and the bridge rectifier circuit; a smoothing capacitor that is connected to an output side of the bridge rectifier circuit and smoothes a voltage; and a converter control unit that executes, based on predetermined threshold values, a diode rectification control that uses diodes and parasitic diodes of the MOSFETs, a synchronous rectification control that switches the MOSFETs in synchronization with a polarity of the voltage of the AC power supply, a partial switching control that repeats partially short-circuiting the reactor multiple times in a half cycle of the AC power supply, or a fast switching control that short-circuits the reactor at a predetermined frequency over a full AC cycle.

DC power supply unit and air conditioner using same

According to an embodiment, there is provided a sheet processing apparatus includes a stacking unit that stacks a sheet conveyed thereto; a first alignment unit that aligns the sheet or a bundle of sheets stacked in the stacking unit in a sheet conveying direction; a second alignment unit that aligns the sheet or the bundle of sheets stacked in the stacking unit in a direction orthogonal to the sheet conveying direction; a pressing unit that presses the bundle of sheets at an end portion thereof on a predetermined one side; and a control unit that causes at least one of the first and second alignment units to execute an alignment operation during a press operation of the sheet or the bundle of sheets performed by the pressing unit.

Sheet processing apparatus and image forming system

A sheet discharging device includes a shift trayon which a sheet Pis stacked, a discharging rollerthat discharges a sheet Ponto the shift tray, a blowing devicethat sends air to a lower surface of the sheet Pdischarged by the discharging roller, a blocking memberthat blocks air sent to the lower surface of the sheet Pfrom a blowing port-of the blowing device, and a control unit that controls the blocking amount of the blocking member. The blocking amount is determined based upon sheet information including sheet-type information, sheet-size information, and sheet-thickness information, for example.

Sheet discharging device, image forming system, and sheet discharging method

A sheet ejecting device includes: a sheet ejecting unit configured to eject a sheet; a stacking unit on which the sheet that is ejected by the ejecting unit is stacked; an aligning unit configured to align the sheet in a direction orthogonal to the direction in which the sheet is ejected; and a blowing unit configured to be provided to the aligning unit and blow a wind toward the ejected sheet.

Sheet ejecting device, image forming system, and sheet ejecting method

A polymerizable UV-absorbing colorant monomer is provided, which is excellent in stability under alkaline conditions and which is available for a useful material polymer for an intraocular lens. A compound, which is represented by the following general formula (1), is used as a polymerizable UV-absorbing monomer available for a material polymer for an intraocular lens: (in the general formula (1), Ris a hydrogen atom, a hydroxy group, a carboxy group, an alkyl group having 1 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, a sulfonic acid group, or a benzyloxy group, Ris a hydrogen atom, a hydroxy group, or an alkoxy group having 1 to 4 carbon atoms, and Ris represented by the following formula (2)):(in the general formula (2), Ris a hydrogen atom or a methyl group, and Ris a single bond or an alkylene group having 1 to 4 carbon atoms which may have a substituent or substituents.)

Stable polymerizable UV-absorbing colorant for intraocular lens

A recording medium discharging device includes a discharging unit configured to discharge a recording medium from a discharge port; a tray unit on which the recording medium discharged from the discharging unit is stacked; and an air blower configured to blow air in a direction substantially parallel to a direction in which the recording medium is discharged.

Recording medium discharging device

A sheet discharging device includes a shift trayon which a sheet P1 is stacked, a discharging rollerthat discharges a sheet P2 onto the shift tray, a blowing devicethat sends air to a lower surface of the sheet P2 discharged by the discharging roller, a blocking memberthat blocks air sent to the lower surface of the sheet P2 from a blowing port-of the blowing device, and a control unit that controls the blocking amount of the blocking member. The blocking amount is determined based upon sheet information including sheet-type information, sheet-size information, and sheet-thickness information, for example.

In a sheet creaser, a sheet set is pushed between a pair of folding rollers to fold the sheet set. Then, a re-pressing roller re-presses the sheet set, which has been folded by the folding rollers, by rolling along the crease. Pressure applied on the sheet set by the folding rollers is released when the re-pressing roller re-presses the sheet set.

Sheet creaser, sheet finisher, image forming apparatus, sheet folding method, and computer program product

A sheet handling apparatus includes a sheet folding unit configured to perform folding on a sheet; and a sheet stacking unit configured to stack the folded sheet on a sheet stacking surface having an inclined surface and a horizontal surface in order from upstream to downstream in a sheet conveying direction. A downstream end of the inclined surface is higher than an upstream end of the inclined surface with respect to a horizontal plane. The sheet handling apparatus also includes a discharging unit configured to discharge the folded sheet to the sheet stacking unit; a sheet conveying unit configured to convey the discharged sheet from the inclined surface to the horizontal surface; and a conveying force applying unit configured to apply a conveying force to the sheet in contact with an upper surface of the sheet from above the inclined surface.

Sheet folding device having inclined stacking surface

According to an embodiment, provided is a sheet output device including: a sheet output unit configured to output a sheet; a tray unit on which the sheet output by the sheet output unit is to be stacked; an air blower unit configured to blow air onto the sheet output by the sheet output unit; and a control unit configured to control an airflow rate of the air blower unit according to an amount of the sheet output from the sheet output unit.

Sheet output device, sheet processing apparatus, image forming system, and sheet output method

A perforating apparatus having an orientation correction device that corrects skewing and aligns the front edge by striking the front edge of the paper, a perforation device having a punch to conduct perforation processing on the paper; and a lateral registration adjustment device that can adjust, in a direction at a right angle to the direction of movement of the aforementioned paper, the position of the perforation device punch in relation to the paper with orientation corrected using an orientation constraint device prior to perforating by the perforation device. The perforating apparatus may also include a structure in which said perforation device can be inserted into and detached from a non-moving support unit having the drive source of a lateral registration adjustment device, and when mounted, the type of perforation device can be recognized.

Perforating apparatus, sheet processing apparatus, and image forming apparatus

Growing community of inventors

Kanagawa, Japan

Masahiro Tamura