1
Kenji Okamoto, Shinji Uchida, Takao Maeda, Takashi Aihara, Yoshihiro Matsumoto, Naoto Fukasawa: Noise-cut LC filter for power converter with overlapping aligned coil patterns. Fuji Electric, Rossi & Associates, November 7, 2000: US06144269 (23 worldwide citation)

A noise-cut filter having distributed inductances and distributed capacitances is provided wherein conductive spiral coil patterns are formed on the opposite surfaces of a dielectric sheet, such that the spiral coil patterns are aligned with each other in a direction perpendicular to the plane of th ...


2
Takayuki Wakida, Takashi Aihara, Shigeru Miyazawa, Yoshimune Matsuyama: Substation system. Hitachi, Crowell & Moring, December 14, 2004: US06832169 (15 worldwide citation)

The structure, provides autonomous automation, digitalize data, and effective use data by utilizing a network. A measuring card for measuring voltage and current according to values detected by the state detector that detects voltage and current of the system, a protection card for performing a prot ...


3
Takayuki Wakida, Takashi Aihara, Shigeru Miyazawa, Yoshimune Matsuyama: Substation system. Hitachi, Crowell & Moring, May 9, 2006: US07043381 (14 worldwide citation)

A network which simplifies structure, realizes autonomous automation, digitalizes data, and effectively uses data is disclosed. A measuring card for measuring voltage and current according to values detected by the state detector that detects voltage and current of the system. A protection card perf ...


4
Shinichi Kondo, Yasunori Ono, Noriyuki Uchiyama, Masaya Ichinose, Mitsugu Matsutake, Takashi Aihara: Controller and control method for a wind farm including a plurality of wind turbine generators. Hitachi, Antonelli Terry Stout & Kraus, December 11, 2012: US08332077 (12 worldwide citation)

In a controller for a windfarm including a plurality of wind turbine generators controllable in rotation frequency and pith of blades of the wind turbine generators, coupled to a grid through a transmission line, an anemometer is provided to each wind turbine generator to transmits wind direction an ...


5
Kenji Okamoto, Shinji Uchida, Takao Maeda, Takashi Aihara, Yoshihiro Matsumoto, Naoto Fukasawa: Noise-cut filter for power converter. Fuji Electric Company, Rossi & Associates, April 6, 1999: US05892668 (11 worldwide citation)

A noise-cut filter device for a power converter, including at least one noise-cut filter, for filtering switching noise occurring upon a switching operation of a semiconductor switching device of the power converter is disclosed. In this filter device, the noise-cut filter includes first and second ...


6
Takashi Aihara, Tohru Naganuma, Makoto Ando, Kenji Okamoto, Koichiro Kishima: Printing apparatus and method for controlling the spread of fluid around a nozzle orifice. Sony Corporation, Ronald P Kananen, Rader Fishman & Grauer, July 10, 2001: US06257700 (9 worldwide citation)

A printing apparatus having a printing head that prevents ink, diluent, and a mixed solution thereof from adhering to and spreading about a portion of the printing head around a nozzle. The printing apparatus has an enhanced ability to reproduce a gradation of concentration, thereby making it possib ...


7
Jiro Toyozaki, Takao Yanase, Shinichi Ishii, Takashi Aihara: AC-DC converter. Fuji Electric, Finnegan Henderson Farabow Garrett & Dunner L, May 12, 1998: US05751567 (8 worldwide citation)

An AC-DC converter includes an adjusting unit 13 which operates to zero the difference between a DC output voltage instruction value and a DC output voltage detection value; and a modulator 16 which compares a carrier wave based on an output signal of the adjusting unit 13 with a modulating wave to ...


8
Kenji Okamoto, Shinji Uchida, Takao Maeda, Takashi Aihara, Yoshihiro Matsumoto, Naoto Fukasawa: Noise-cut filter for power converter. Fuji Electric, Rossi & Associates, November 20, 2001: US06317965 (6 worldwide citation)

A method of manufacturing a noise-cut filter having distributed inductances and distributed capacitances is produced wherein conductive spiral coil patterns are formed on the opposite surfaces of a dielectric sheet, such that the spiral coil patterns are aligned with each other in a direction perpen ...


9
Hiroshi Fujita, Naoki Mogi, Shigehisa Ueda, Takashi Aihara: Epoxy resin composition. Sumitomo Bakelite Company, Browdy and Neimark, November 26, 1996: US05578660 (6 worldwide citation)

Disclosed is an epoxy resin composition for sealing semiconductors which comprises as essential components: (A) an epoxy resin containing a biphenyl type epoxy resin represented by the following formula (1) in an amount of 30-100% by weight on the basis of the total amount of the epoxy resin, ##STR1 ...


10
Hirokazu Tajima, Hidetoshi Umida, Takashi Aihara: Variable speed controlling device for induction motor. Fuji Electric, Greer Burns & Crain, September 28, 1999: US05959429 (6 worldwide citation)

When an induction motor is variable-speed-controlled via an electric power converting circuit, the magnetic flux of the induction motor is modulated by adding an alternating current signal to, for example, a magnetizing current command. For example, the component depending on the slip frequency of t ...