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Kenji Yasuda, Akira Kobayashi, Makiko Tokita, Masao Maekawa, Masahiko Kitajima, Hisao Maruyama: Ink jet recording sheet and process for producing same. Oji Paper, Armstrong Nikaido Marmelstein Kubovcik & Murray, July 31, 1990: US04944988 (50 worldwide citation)

An ink jet recording sheet having an enhanced ink-absorbing property and bright color image-forming property and an excellent surface hardness has a specific coating layer formed on a surface of a substrate sheet, which comprises a pigment and a resinous binder composed of a cationic copolymer prepa ...


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Hisao Maruyama, Masahiko Kitajima, Tsutomu Matsubara: Method of manufacturing a container covered with protective sheet. Fuji Seal Industry Co, Yamamura Glass Kabushiki Kaisha, Austin P Miller, June 17, 1986: US04595544 (8 worldwide citation)

A method of manufacturing containers covered tightly with a protective sheet with a porous resin film layer or rubber film layer in-between.


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Masahiko Kitajima, Hiroshi Nakamura, Kosuke Nishimura: High performance dielectric ceramic filter. UBE Electronics, Maxim H Waldbaum Esq, Kimberley K Weate Esq, December 7, 2004: US06828883 (6 worldwide citation)

A reduced size ceramic block filter has trap holes whose center is askew from the line running through the center of the transmission poles such that the height-wise distance between its center and the center line of the transmission poles is greater than (dt+d1)/2, but not greater than 3/8 of ...


4
Takehiko Kondoh, Masahiko Kitajima: Precalciner for cement raw meal. UBE, Blakely Sokoloff Taylor & Zafman, July 9, 1985: US04527973 (3 worldwide citation)

A precalciner for cement raw meal is divided into upper and lower parts. The upper part is shaped into a cylinder, while the lower part is constituted by upper and lower inverted conical portions. The upper inverted concial portion has a cone angle smaller than that of the lower inverted conical por ...


5
Masahiko Kitajima, Hiroshi Nakamura, Kosuke Nishimura: Dielectric ceramic filter with improved electrical characteristics in high side of filter passband. Ube Electronics, Maxim H Waldbaum, June 11, 2002: US06404306 (2 worldwide citation)

A ceramic block filter is designed with a shunt transmission line to attenuate third harmonics. A metallized belt is printed on the top surface of the filter along its edges so that it is connected to the metallized ground of the side surfaces. Along one edge an unmetallized line is left along one e ...


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Masahiko Kitajima, Kosuke Nishimura, Hiroshi Nakamura: Duplexer filter with offset resonator holes. Ube Electronics, Maxim H Waldbaum Esq, Kimberly K Weate, Salans, April 20, 2004: US06724279 (2 worldwide citation)

A filter with an equivalent circuit that functions as well as physically larger filters without substantial drop off in performance.


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Masahiko Kitajima, Kosuke Nishimura, Nobuhiro Harada: High performance dielectric ceramic filter using a non-linear array of holes. Ube Electronics, Maxim H Waldaum, November 6, 2001: US06313721

A high performance dielectric ceramic filter in a small package is designed with one or more holes positioned off of the straight-line bisecting at least two holes. This configuration allows for the elimination of at least one trap hole while maintaining a given performance characteristic for the fi ...


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Masahiko Kitajima, Hiroshi Nakamura, Kosuke Nishimura: High performance dielectric ceramic filter. Ube Electronics, Maxim H Waldbaum, Mekalaradha Masilamani, Salans, September 2, 2003: US06614330

A reduced size ceramic block filter has trap holes whose center is askew from the line running through the center of the transmission poles such that the height-wise distance between its center and the center line of the transmission poles is approximately between {fraction (1/8 )}and {fraction (3/8 ...