Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electric Corporation

Junichiro Hoshizaki

Sadayuki Matsumoto

Masakazu Takabayashi

Kiichi Yoshiara

Shigeru Matsuno

Takuya Ohira

Hajime Takeya

Tsuyoshi Maeda

Sota Komae

Naho Misumi

Minoru Hashimoto

Susumu Fujiwara

Takeo Saikatsu

Takehiko Sakurai

Shiro Takeuchi

Ryosuke Namiki

Tomoo Kobayashi

Takashi Hashimoto

Toshio Yamada

Fusaoki Uchikawa

Daisuke Kondo

Kiyohide Sakai

Osamu Myodo

Takeyuki Maegawa

Akihiro Iwahara

Masayoshi Izuka

Mari Orito

Tadashi Fukushima

Kenji Yanagisawa

Hisae Nishimatsu

Kazuo Yoshika

Hrumi Sawada

A deodorizer includes: a body case having an inlet and an outlet opening outward and having an air duct that provides communication between the inlet and the outlet; a blowing fan included in the body case, for introducing indoor air into the air duct extending from the inlet to the outlet; deodorizing means provided in a middle of the air duct, through which the introduced air can pass; heating means placed to face at least a partial region of the deodorizing means, for heating the deodorizing means at 200&#xb0; C. or less; and a controller for controlling operations of the blowing fan and the heating means. The deodorizing means includes, on a carrier, an adsorbent that does not oxidatively decompose an adsorbed material, a catalyst component that oxidatively decomposes the adsorbed material, and a rate of conversion of alcohol into acetic acid by the catalyst component is 15% or less on average across the entire deodorizing means.

Deodorizer

A fluid sending apparatus includes a signal generator that generates a signal including a signal component that has a one-sided waveform and is composed of a rising component in a positive voltage direction, a falling component in the positive voltage direction, and a vortex ring formation time component T, and a damping component for driving for a predetermined time with a voltage less than or equal to one-half of a voltage in the positive voltage direction, the waveform of each of the signal component and the damping component corresponding to a single wave.

Fluid sending apparatus

A cyclonic separator and a vacuum cleaner which efficiently separates dust, collect the dust without re-scattering it and make low noise are provided. In a primary cyclone portion, a primary swirl chamberswirls air containing dust sucked from a primary inlet, and thereby, separates a first dust and a second dust from the air containing dust to collect them respectively in a zero-order dust casewhich is provided at a side of the primary swirl chamberand communicates with a zero-order opening portionprovided at a side wall, and a primary dust caseprovided at a lower side of the primary swirl chamber. In a secondary cyclone portion, a secondary inletwith an opening area smaller than that of a primary outlet bodysucks air exhausted from the primary outlet body, a secondary swirl chamberswirls the first air to separate the second dust which is finer than the first dust from the first air to collect the second dust in a secondary dust caseprovided at a lower side of the secondary swirl chamber. With regard to the cyclonic separator with such a configuration, the zero-order dust caseis formed to cover at least a part of the secondary cyclone portion

Cyclone separator and vacuum cleaner

There is provided a suction tool for a vacuum cleaner that can easily remove dust entangled around a rotating brush with a small force in a sanitary manner with clean hands without spreading dust. The suction tool includes dust removing meansfor removing dust adhering to a rotating brush, the dust removing meansincludes a first remover that has substantially the same shape as a troughbetween cleaning bodiesor between cleaning body holding portionsof the rotating brush, and is guided in an axial direction of the rotating brushwithin the trough

Suction tool for vacuum cleaner

A vacuum cleaner including a suction port body, a motor-driven blower, and a cyclone part that is disposed between the suction port body and the motor-driven blower and is provided with an inflow port, a swirl chamber, and a discharge port body. The side surface of the discharge port body is composed of a cylindrical mesh and a conical mesh. The side wall of the swirl chamber is composed of a cylindrical part and a conical part. The vacuum cleaner further includes a zero-order opening formed by opening a part of the cylindrical part, a first-order opening formed by opening a part of the conical part, a zero-order dust case communicating with the swirl chamber via the zero-order opening, and a first-order dust case communicating with the swirl chamber via the first-order opening.

Vacuum cleaner

A polarization dispersion compensation apparatus includes a polarization controller, a polarization beam splitter, an optical delay circuit, and a polarization beam combiner. The polarization controller controls polarization of an optical signal so that the polarization axis of the input optical signal substantially coincides with the optical axis of an optical transmission line, and the polarization beam splitter section splits the optical signal into two polarized components perpendicular to each other. The optical delay circuit section causes a difference in delay between the two polarized components, and the polarization beam combiner section combines the two polarized components output from the optical delay circuit section. Each of the polarization beam splitter section and the polarization beam combiner section includes a symmetric Mach-Zehnder interferometer having optical transmission lines in two arms, each arm including a temperature control and a birefringence portion for compensating polarization dispersion between the two polarized components.

Polarization dispersion compensating apparatus

A variable dispersion compensator includes an optical waveguide, a temperature controller. The optical waveguide has a chirped grating having a Bragg wavelength changing along the longitudinal direction of the grating. A temperature distribution T (x) is applied to a central portion of the grating, defined as a region where a distance x from an end of the grating is a range of 20 % to 80 % of total length of the grating. Temperature distribution T (x) and T (x) are applied to end portions of the grating, defined as two regions extending from respective ends of the grating to the central region, respectively. At least one of T (x) and T (x) has a distance dependence different from that of the T (x).

Variable dispersion compensator

In a polarization mode dispersion compensating apparatus for controlling polarization mode dispersion of an optical signal, a first optical monitor detects and outputs, based on an optical signal outputted from a first optical transmission line having a grating, a first detection signal indicating magnitude of waveform distortion of the first optical transmission line, and a second optical monitor detects and outputs, based on an optical signal output from a second optical transmission line having a grating, a second detection signal indicating magnitude of waveform distortion of the second optical transmission line. A calculator circuit calculates from the first and second detection signals an output signal. A controller controls a polarization controller based on the output signal from the calculator circuit.

PMD compensating apparatus for controlling polarization controller based on detection of magnitude of waveform distortion

A method of manufacturing a grating in an optical waveguide that includes a core and a cladding covering the core. The method includes scanning a laser beam along an optical axis of the optical waveguide to modulate the refractive index of the core. The core is made of a material having a refractive index that is changeable upon irradiation by radiation. In addition, in scanning the core, the irradiation range of the laser beam is controlled and the core is scanned several times. Therefore, a predetermined distribution of irradiation is obtained in a direction of the optical axis of the grating.

Method of manufacturing grating

A temperature control device for controlling temperature variable devices disposed near a grating of a variable dispersion equalizer including an optical waveguide having the grating. The temperature variable devices control temperatures independently of each other. The temperature control device includes a controller for controlling the temperature variable units, and a storage device which stores temperature control patterns including combinations of control signals for the respective temperature variable units. The controller controls the temperature variable devices with a control signal of at least one of the temperature control patterns selected from the storage device.

Temperature control system for a grating

A waveguide grating device controlling Bragg wavelength after manufacture of the device includes an optical waveguide on a substrate. A variable stress is applied to a waveguide grating in part of the waveguide to bend at least the portion of the substrate including the waveguide grating, changing the Bragg wavelength.

Waveguide grating device and method of controlling Bragg wavelength of waveguide grating

A discharge lamp having a large light output and a stable discharge. On an external surface of a cylindrical glass bulb enclosing a rare gas such as xenon, a pair of beltlike electrodes are mounted so as to face each other. A light output part is provided between the electrodes, and the electrodes are situated close to each other on the opposite side to the light output part. An image display device is constituted by arranging a plurality of the discharge lamps.

Discharge lamp, image display device using the same and discharge lamp

A gas discharge image display is formed by disposing a plurality of fluorescent lamps 1 each comprising a glass bulb 2 within which a rare gas is sealed, one or more pairs of external electrodes 5a and 5b located on the outer wall of the glass bulb 2, and a fluorescent layer 3 formed on the inner wall of the container facing the external electrodes 5a and 5b. An alternating voltage pulse is applied between the paired external electrodes 5a and 5b by an X drive circuit 9 and a Y drive circuit 10 for discharge light emission, thereby displaying an image. The pressure and alternating voltage in the fluorescent lamp 1 are changed in response to the type of fluorescent material, thereby making near light emission and discharge characteristics of the discharge lamps which differ in electric characteristics.

Growing community of inventors

Tokyo, Japan

Junichiro Hoshizaki