1
Shinichi Tamura, Youichi Tei, Naoki Itoh, Kazumi Egota, Kenichi Ohkura: Electrophotographic photoreceptors including titanyloxyphthalocyanine crystals. Fuji Electric, April 7, 1998: US05736282 (13 worldwide citation)

An electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer including a charge generation material and a charge transport material. The charge generation material is a titanyloxyphthalocyanine crystal having a maximum diffraction intensity observed at Bragg angle ...


2
Yoshiaki Itoh, Michio Osawa, Youichi Tei, Yoshiharu Kashiwakura, Michinori Nishimura, Kazuo Nimura: Magnetic recording medium having an enhanced diamond bonding ratio and a method for the manufacture thereof. Fuji Electric, Morrison Law Firm, March 25, 1997: US05614314 (11 worldwide citation)

A magnetic recording medium and a method for the manufacture thereof are disclosed that are less likely to result in head crushing even if high-hardness slider materials are used, and which is formed with a carbon protective layer that has good anti-CSS characteristics. The carbon protective layer i ...


3
Shinji Shirai, Youichi Tei, Takahiro Tokumoto: Magnetic recording medium and method for manufacturing the same. Fuji Electric, Darby & Darby, May 4, 2004: US06730403 (10 worldwide citation)

A lubricant for a magnetic recording medium that imparts resistance to degradation, improved lubrication quality and better CSS durability to the medium, even when using a low levitating head. The lubricant is a perfluoropolyether compound having a cyclic triphosphazene end group within the molecule ...


4
Youichi Tei, Shinji Shirai, Yoshimasa Hattori: Liquid lubricant, magnetic recording medium using the same, and method for manufacturing magnetic recording medium. Fuji Electric, Rossi & Associates, August 1, 2000: US06096694 (9 worldwide citation)

A perfluoropolyether liquid lubricant is provided which has an amine functional group at at least one of ends of a chain molecule. A magnetic recording medium using the lubricant assures increased bonding force between a carbon protective layer and a lubricant layer.


5
Shinichi Tamura, Youichi Tei, Naoki Itoh, Kazumi Egota, Kenichi Ohkura: Titanyloxyphthalocyanine crystals, and method of preparing the same. Fuji Electric, Spencer & Frank, February 23, 1999: US05874570 (8 worldwide citation)

A titanyloxyphthalocyanine crystal to be used as a charge generation material for an electrophotographic photoreceptor, having a maximum diffraction intensity observed at Bragg angle (2 .theta.) of 9.6.degree..+-.0.2.degree. and clear peaks of diffraction intensity observed at 7.22.degree..+-.0.2.de ...


6
Katsumi Onodera, Youichi Tei: Method for determining the quality of a lubricant layer on a magnetic recording medium by detecting electrons at varying drawing angles. Fuji Electric, Brumbaugh Graves Donohue & Raymond, September 1, 1992: US05144134 (7 worldwide citation)

The quality of a lubricant layer formed on a surface of a magnetic recording medium is determined by exposing the lubricant molecules of the lubricant layer to a radiation source for x-ray photoelectron spectroscopy while varying the photoelectron drawing angle. The number of emitted electrons is de ...


7
Shinji Shirai, Youichi Tei: Magnetic recording medium and method for manufacturing same. Fuji Electric, Rossi & Associates, November 11, 2003: US06645634 (5 worldwide citation)

To avoid troubles associated with high-density recording and fast transfer rate, such as decomposition of lubricant involved in a low floating height magnetic head and migration of lubricants involved in high speed rotation of a magnetic recording medium, and to provide a magnetic recording medium w ...


8
Shinichi Tamura, Seishi Terasaki, Tadashi Mimura, Teruaki Kobayashi, Youichi Tei: Metal-free phythalocyanine, process for preparing the same, and electrophotographic photoconductor using the same. Fuji Electric, Spencer & Frank, December 17, 1996: US05585483 (4 worldwide citation)

Phthalonitrile, an alkali metal or an alkali metal compound, and a hydrogen donor compound are heated in an organic solvent to synthesize a partially hydrogenated alkali metal phthalocyanine, which is then brought into contact with a dealkalizing agent to effect substitution with hydrogen of the par ...


9
Shinichi Tamura, Seishi Terasaki, Tadashi Mimura, Teruaki Kobayashi, Youichi Tei: Process for preparing a metal-free phthalocyanine. Fuji Electric, Spencer & Frank, October 20, 1998: US05824800 (2 worldwide citation)

Phthalonitrile, an alkali metal or an alkali metal compound, and a hydrogen donor compound are heated in an organic solvent to synthesize a partially hydrogenated alkali metal phthalocyanine, which is then brought into contact with a dealkalizing agent to effect substitution with hydrogen of the par ...


10
Youichi Tei, Akira Iso, Kazuhito Higuchi, Hajime Kurihara, Hiroyuki Uwazumi: Method of manufacturing a disk substrate for a magnetic recording medium. Fuji Electric, Rossi Kimms & McDowell, October 18, 2011: US08039045 (1 worldwide citation)

An object of the present invention is to provide a plating method on a glass base plate. The method allows forming a plating film on a base plate composed of a glass material with excellent adhesivity and homogeneity by means of an electroless plating method even to a thickness of 1 μm or more. Befo ...