Patents by Inventor Kenichiro Tanaka
Kenichiro Tanaka 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).
-
Patent number: 8967827Abstract: Provided is lead frame in which a wiring pattern supported by a support piece inside of a one-pitch outer frame section comprises a plurality of base units, each of which comprises a die pad on which a solid-state light emitting element is mounted, a heat sink extending from die pad so as to surround die pad electrically connected to one electrode of the element, and a lead electrically connected to the other electrode of the element. Lead of one base unit among adjacent base units and heat sink of the other base unit are coupled and electrically connected in series. Increase in temperature of the element is inhibited, light output is increased, and cost of a light emitting unit in which a plurality of solid-state light emitting elements connected in series are used is reduced. Also provided are wiring board, light emitting unit, and illuminating apparatus.Type: GrantFiled: April 26, 2011Date of Patent: March 3, 2015Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yoji Urano, Ryoji Yokotani, Ikko Kuzuhara, Kenichiro Tanaka
-
Patent number: 8894251Abstract: A lighting device is provided in accordance with the present invention having reduced luminance and color unevenness. A plurality of solid-state light emitting elements are mounted on a base substrate. An optical member is further mounted on the substrate and arranged so as to cover light emitting surfaces of the light emitting elements, the optical member having a semicircular or semielliptical cross-sectional surface, and gutter-shaped in a longitudinal direction with respect to the substrate. A wavelength converting member covers the semicircular or semielliptical cross-sectional surface of the optical member, and is excitable by light from the solid-state light emitting elements to thereby emit wavelength-converted light. In various embodiments light diffusion members may be further distributed among the light emitting elements.Type: GrantFiled: July 5, 2011Date of Patent: November 25, 2014Assignee: Panasonic CorporationInventors: Ryoji Yokotani, Keiji Kiba, Kenichiro Tanaka
-
Patent number: 8889075Abstract: The present invention provides an apparatus for producing water having redox activity. In the apparatus, at least one of oxygen, ozone, chlorine, nitrogen monoxide, and ammonia as a reaction precursor is previously mixed into water or running water while regulating the concentration of the dissolved substance followed by the application of ultrasonic vibrations, whereby active oxygen species are generated in water. In another embodiment, water or running water is brought into contact with a catalyst to which ultrasonic vibrations or electromagnetic waves have been applied, whereby active oxygen species are generated in water.Type: GrantFiled: September 26, 2008Date of Patent: November 18, 2014Assignee: Kitakyushu Foundation for the Advancement of Industry, Science and TechnologyInventors: Kenichiro Tanaka, Licca Tanaka, Tomonori Kawano
-
Publication number: 20140194274Abstract: Provided is a method for manufacturing a titania coated alumina fiber aggregate which includes the steps of: forming an aluminum fiber aggregate where aluminum fibers are aggregated with density per unit volume of 0.5 g/cm3 to 3 g/cm3; forming an alumina fiber aggregate where an oxide film having a film thickness of 50 nm or more is formed on alumina fibers; and forming a titania coated alumina fiber aggregate where a titania thin film is formed on alumina fibers.Type: ApplicationFiled: September 23, 2013Publication date: July 10, 2014Applicant: K2R Co., Ltd.Inventors: Kenichiro TANAKA, Licca TANAKA, Tsutomu HARADA
-
Patent number: 8772761Abstract: The light emitting device includes an organic electroluminescent element (20) and a diffractive optical element (30). The organic electroluminescent element (20) includes an anode layer (21), a cathode layer (22), and plural light emitting layers (231 and 232) interposed between the anode layer (21) and the cathode layer (22) and configured to emit light rays with different wavelengths. The diffractive optical element (30) is positioned in paths of light rays emitted from the organic electroluminescent element (20). The diffractive optical element (30) is designed to have different grating patterns (311 and 312) diffracting the light rays respectively emitted from the light emitting layers (231 and 232) for reducing chromatic aberration.Type: GrantFiled: February 22, 2010Date of Patent: July 8, 2014Assignee: Panasonic CorporationInventors: Kazuyuki Yamae, Kenichiro Tanaka
-
Patent number: 8742435Abstract: The LED lighting device in this invention comprises a light source, a first face sheet, and a reflection sheet. The light source comprises a plurality of LED chips which are configured to emit lights having wavelengths which are different from each other. The first face sheet has a rear surface. The rear surface is defined as a diffusing and reflecting surface which is being configured to diffuse and reflect the lights which are emitted from the LED chips. The first face sheet is provided with a plurality of apertures. The reflection sheet has a second reflecting surface. The second reflecting surface is configured to reflect the light which is reflected from the diffusing and reflecting surface of the first face sheet toward the first face sheet. Each the aperture is shaped to pass the light which is reflected from the second reflecting surface.Type: GrantFiled: March 24, 2009Date of Patent: June 3, 2014Assignee: Panasonic CorporationInventors: Kenichiro Tanaka, Akira Fukuoka
-
Publication number: 20140138704Abstract: A semiconductor device includes a field effect transistor that has a first nitride semiconductor layer and a second nitride semiconductor layer larger in bandgap than the first nitride semiconductor layer formed on a substrate in this order and a gate electrode, a source electrode, and a drain electrode, and uses two-dimensional electron gas formed at the interface between the first and second nitride semiconductor layers as the channel. The field effect transistor further has a p-type nitride semiconductor layer formed between the gate electrode and the drain electrode and electrically connected to the drain electrode.Type: ApplicationFiled: January 27, 2014Publication date: May 22, 2014Applicant: PANASONIC CORPORATIONInventors: Kenichiro TANAKA, Tetsuzo UEDA
-
Patent number: 8729573Abstract: An LED lighting device comprises a plurality of light emitting units which is configured to emit visible light having different colors which are mixed with each other to produce a white light. Each the light emitting units is composed of an LED chip and a phosphor. The LED chip is configured to generate light. The phosphor has a property of giving off a light of a predetermined color when the phosphor is excited by the light from the LED chip. The LED chip is selected from a group consisting of a blue LED chip, a UV LED chip, ad a violet LED chip. Each the phosphor is selected to give off the light of a predetermined color different from one another.Type: GrantFiled: July 25, 2008Date of Patent: May 20, 2014Assignee: Panasonic CorporationInventors: Kenichiro Tanaka, Takanori Aketa
-
Patent number: 8723229Abstract: In a manufacturing method of a semiconductor device, first, a first semiconductor layer, a second semiconductor layer, and a p-type third semiconductor layer are sequentially epitaxially grown on a substrate. After that, the third semiconductor layer is selectively removed. Then, a fourth semiconductor layer is epitaxially grown on the second semiconductor layer. Then, a gate electrode is formed on the third semiconductor layer.Type: GrantFiled: July 13, 2011Date of Patent: May 13, 2014Assignee: Panasonic CorporationInventors: Masahiro Hikita, Kenichiro Tanaka, Tetsuzo Ueda
-
Patent number: 8704256Abstract: In a lens-mounted light emitting unit comprising LED elements of multiple light colors, narrow-angle light distribution is enabled, and color mixing properties are improved. The lens-mounted light emitting unit comprises LED elements of multiple light colors placed on a base plate, and a lens unit having a shape of a body of revolution to color-mix and emit the light from the LED elements. Assuming an arbitrary contact point between the side incident surface and the upper incident surface of the lens unit, and that light from an LED element farthest from the contact point is refracted at the contact point to form a light path intersecting the emitting surface at an intersection point, the emitting surface inside a circle formed by continuously connecting such intersection points has a diffusion angle larger than the diffusion angle of the emitting surface outside the circle. This enables narrow-angle light distribution, and makes it possible to improve color mixing properties.Type: GrantFiled: April 16, 2009Date of Patent: April 22, 2014Assignee: Panasonic CorporationInventors: Hiroyuki Sekii, Yoko Matsubayashi, Kenichiro Tanaka
-
Patent number: 8659056Abstract: An insulator is formed on the upper surface of a first semiconductor layer on at least a part of a portion above which a second semiconductor layer is not formed due to an opening. In the opening, a source electrode is formed to cover an insulator. The source electrode is formed to be in contact with an interface between the first semiconductor layer and the second semiconductor layer.Type: GrantFiled: December 26, 2012Date of Patent: February 25, 2014Assignee: Panasonic CorporationInventors: Kenichiro Tanaka, Tetsuzo Ueda
-
Publication number: 20140038770Abstract: An electric power generating device (1) capable of suppressing an increase of a frontal surface area of an aircraft engine includes a transmission (22) connected with a rotary shaft (9) of the engine (E), an electric power generator (34) driven by an output of the transmission (22), an input shaft (27) having a shaft axis extending in a direction crossing the rotary shaft (9) and connected with the rotary shaft (9), and a transmitting mechanism (21) connected with the input shaft (27) to drive the transmission (22) about an axis extending in a direction perpendicular to the input shaft (27). The transmission (22) and the electric power generator (34) are disposed spaced a distance from each other in a direction circumferentially of the rotary shaft (9).Type: ApplicationFiled: April 4, 2012Publication date: February 6, 2014Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Tatsuhiko Goi, Kenichiro Tanaka, Koji Watanabe, Isao Fujii
-
Publication number: 20140026589Abstract: To provide an aircraft engine in which an accessory can be directly supported with no accessory gearbox intervening to thereby suppress an increase in size thereof, the aircraft engine (E) includes a take-out shaft (11) having a first end portion, connected with an engine rotary shaft (9) and extending in a radially outward direction, and also having a second end portion connected with an accessory (1), and a mounting pad (12) provided in an engine main body (EB) and to which the accessory (1) is fitted. The mounting pad (12) forms an outer perimeter of an opening (48) through which the take-out shaft (11) extends. The opening (48) is sealed by a covering (47), through which the take-out shaft (1) extends, and a sealing member (49) to seal between the covering (47) and the take-out shaft (11).Type: ApplicationFiled: April 4, 2012Publication date: January 30, 2014Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Tatsuhiko Goi, Kenichiro Tanaka, Koji Watanabe, Isao Fujii
-
Patent number: 8604516Abstract: A first group III nitride semiconductor layer has a low carbon concentration region having a carbon concentration of less than 1×1017 cm?3, and located in a region under an edge of a gate electrode closer to a drain electrode, a thickness d2 of the low carbon concentration region satisfies Vm/(110·d1)?d2<Vm/(110·d1)+0.5 where d1 is a thickness of a nitride semiconductor layer including the first group III nitride semiconductor layer and the second group III nitride semiconductor layer, and Vm is an operating breakdown voltage, and a ratio of Ron to Ron0, which is an index of a current collapse value, satisfies Ron/Ron0?3 where Ron0 is an on-state resistance in a relaxed state, and Ron is an on-state resistance measured 100 ?s after a transition from an off state to an on state under an operating voltage Vm.Type: GrantFiled: December 27, 2012Date of Patent: December 10, 2013Assignee: Panasonic CorporationInventors: Naohide Wakita, Kenichiro Tanaka, Masahiro Ishida, Satoshi Tamura, Daisuke Shibata
-
Patent number: 8592836Abstract: A light emitting device includes a solid light-emitting element; a mounting substrate mounting the solid light-emitting element thereon; an encapsulating member encapsulating the solid light-emitting element; and a lead frame electrically connected to the solid light-emitting element through a wire. The lead frame is arranged on a rear surface of the mounting substrate, and the mounting substrate includes a front mounting surface on which the solid light-emitting element is mounted. The front mounting surface having a smooth surface region covered with the encapsulating member. The mounting substrate further includes a wire hole through which the wire extends from the front mounting surface of the mounting substrate to the rear surface thereof.Type: GrantFiled: December 20, 2011Date of Patent: November 26, 2013Assignee: Panasonic CorporationInventors: Ryoji Yokotani, Yoji Urano, Ikko Kuzuhara, Kenichiro Tanaka
-
Patent number: 8588335Abstract: A radio communication device which when transmitting both a first information sequence, on which ?/4-shift differential phase shift modulation is performed, as a delayed wave and a second information sequence, on which a differential phase shift modulation is performed, as an advance wave by using a PADM (Per transmit Antenna Differential Mapping) method, interchanges signal points respectively belonging to quadrants which are one of a first quadrant and a third quadrant, a second quadrant and a fourth quadrant, the first quadrant and the second quadrant, the first quadrant and the fourth quadrant, the second quadrant and the third quadrant, and the third quadrant and the fourth quadrant, the signal points being included in signal points mapped onto a complex plane which consists of a real number axis and an imaginary number axis, to change the arrangement of the information sequence.Type: GrantFiled: August 13, 2010Date of Patent: November 19, 2013Assignee: Mitsubishi Electric CorporationInventors: Yoshihiro Hamamatsu, Masaru Nobesawa, Koji Tomitsuka, Kenichiro Tanaka
-
Publication number: 20130265757Abstract: A light-emitting unit includes a mounting substrate, and a first light-emitting portion disposed on the mounting substrate and emits light of a first color temperature to irradiate a first irradiation area, and second light-emitting portions each disposed on the mounting substrate and emits light of a second color temperature to irradiate a second irradiation area. The second irradiation area overlaps part of the first irradiation area and includes a region surrounding the first irradiation area.Type: ApplicationFiled: March 29, 2013Publication date: October 10, 2013Applicant: PANASONIC CORPORATIONInventors: Kenichiro TANAKA, Tomoyuki NAKANO, Yoshiyuki NAKANO
-
Patent number: 8552399Abstract: The present invention provides an apparatus for producing photocatalytic reaction water through a photocatalytic reaction, which can produce water containing a satisfactory amount of active oxygen species, can eliminate microorganisms, parasites or protozoa, shows high oxidizing ability for a prolonged period of time, can reduce the power requirements, is small in size, and is applicable to various devices. A photocatalyst is radiated with light emitted from a light source to produce active oxygen species, and the active oxygen species is diffused in water, whereby the water is provided with functions of the active oxygen species. An oxidation reaction with the water is utilized to perform at least one selected from the elimination of microorganisms, the elimination of parasites, and the elimination of protozoa.Type: GrantFiled: October 11, 2006Date of Patent: October 8, 2013Assignee: K2R Co., Ltd.Inventors: Kenichiro Tanaka, Licca Tanaka, Mizuki Kawakatsu
-
Publication number: 20130235555Abstract: A light emitting device including multiple kinds of light emission units with different emission colors; a driver which drives the light emission units; and a cover member which is commonly provided for the multiple kinds of light emission units. The multiple kinds of light emission units include solid state light emitting elements of the same kind, and wavelength converters which cover the solid state light emitting elements, respectively, and convert wavelengths of lights emitted from the solid state light emitting elements into different wavelengths from each other. Further, the cover member contains a correction phosphor for correcting a chromaticity of light obtained by mixing lights emitted from the light emission units, to a predetermined chromaticity.Type: ApplicationFiled: March 11, 2013Publication date: September 12, 2013Applicant: Panasonic CorporationInventor: Kenichiro TANAKA
-
Publication number: 20130234622Abstract: A light emitting device includes multiple types of solid state light emitting elements having different peak wavelengths from each other; and a wavelength converter including phosphors that convert a wavelength of light emitted from each of the solid state light emitting elements. The phosphors include two or more of a first phosphor, a second phosphor, and a third phosphor. The first phosphor is excited by light emitted from a solid state light emitting element having a relatively long peak wavelength, and the second phosphor is excited by light emitted from a solid state light emitting element having a relatively short peak wavelength. The third phosphor is excited by light emitted from any of the solid state light emitting elements.Type: ApplicationFiled: March 6, 2013Publication date: September 12, 2013Applicant: PANASONIC CORPORATIONInventors: Kenichiro TANAKA, Naoko TAKEI