Patents by Inventor Takahiro Nakajima

Takahiro Nakajima 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).

  • Publication number: 20090110417
    Abstract: An image forming apparatus mounted with a toner cartridge having a memory unit includes a toner cartridge which stores a plurality of control data depending on toner in the memory unit, an acquisition unit which selects one of the plurality of control data in the memory unit and acquires image formation-related information and a setting unit which sets image formation parameters on the basis of the image formation-related information.
    Type: Application
    Filed: October 23, 2008
    Publication date: April 30, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Toru Homma, Hiroshi Hashidume, Hisanobu Ajima, Nobuo Tohata, Takahiro Nakajima, Takumi Hatano
  • Publication number: 20090075194
    Abstract: A developing agent includes a toner particle containing a binder resin including a first polyester resin synthesized from an aromatic monomer and an aliphatic monomer blended with a molar ratio in an alcohol component being satisfied with the relationship of {(aromatic monomer)>(aliphatic monomer)?0} and with a molar ratio in an acid component being satisfied with the relationship of {(aliphatic monomer)>(aromatic monomer)}, a release agent, and a coloring agent.
    Type: Application
    Filed: September 9, 2008
    Publication date: March 19, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Takahiro Nakajima, Tsutomu Katsumata
  • Patent number: 7501373
    Abstract: Embodiments of the present invention are directed to a polymerization catalyst used to produce polyester. The catalyst comprises at least one metal-containing component, excluding antimony or germanium, and an organic compound component, containing at least one moiety of Ar—O— or Ar—N<, where Ar represents an aryl group.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: March 10, 2009
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Takahiro Nakajima, Shoichi Gyobu, Hiroaki Taguchi
  • Publication number: 20080250934
    Abstract: An antiallergen filter of the present invention is characterized in that a water-insoluble high-molecular weight anti-allergenic agent having a phenolic hydroxyl group and a moisture-absorbing material are carried on a filter. Because of using the water-insoluble high-molecular weight substance as an anti-allergenic agent, the antiallergen filter of the present invention is free from a problem that the anti-allergenic agent flows and drops or is detached from the filter due to moisture in the atmosphere, etc. even in a highly humid environment or the like. Further, since the moisture-absorbing material is carried on the filter, moisture that the anti-allergenic agent requires for adsorbing and capturing an allergen and inactivating its allergic activity can be effectively retained on the filter. Thus, the antiallergen filter of the present invention can effectively exert its anti-allergenic effect over a prolonged period of time.
    Type: Application
    Filed: June 6, 2008
    Publication date: October 16, 2008
    Applicant: Matsushita Electric Industrial Co., LTD.
    Inventors: Jun Inagaki, Ryousuke Suga, Takahiro Nakajima, Mitsuhito Teramoto, Taro Suzuki
  • Publication number: 20080249280
    Abstract: This invention provides a polyester and a polyester molded product, which, while maintaining color tone, transparency, and thermal stability, can realize a high polycondensation rate, are less likely to cause the production of polycondensation catalyst-derived undesired materials, and can simultaneously meet both quality and cost effectiveness requirements, which can exhibit the characteristic features, for example, in the fields of ultrafine fibers, high transparent films for optical use, or ultrahigh transparent molded products. These advantages can be realized by using, in the production of a polyester in the presence of an aluminum compound-containing polyester polycondensation catalyst, an aluminum compound having an absorbance of not more than 0.0132 as measured in the form of an aqueous aluminum compound solution, prepared by dissolving the aluminum compound in pure water to give a concentration of 2.
    Type: Application
    Filed: June 24, 2005
    Publication date: October 9, 2008
    Applicant: TOYO BOSEKI KABUSHIKI KAISHA
    Inventors: Katsuhiko Kageyama, Tooru Kitagawa, Kenichi Funaki, Masaki Fuchikami, Kazuo Katayose, Takahiro Nakajima, Toshiyuki Tsuchiya, Satoru Nakagawa, Fumikazu Yoshida, Haruhiko Kohyama, Naoki Watanabe
  • Patent number: 7396393
    Abstract: An antiallergen filter of the present invention is characterized in that a water-insoluble high-molecular weight anti-allergenic agent having a phenolic hydroxyl group and a moisture-absorbing material are carried on a filter. Because of using the water-insoluble high-molecular weight substance as an anti-allergenic agent, the antiallergen filter of the present invention is free from a problem that the anti-allergenic agent flows and drops or is detached from the filter due to moisture in the atmosphere, etc. even in a highly humid environment or the like. Further, since the moisture-absorbing material is carried on the filter, moisture that the anti-allergenic agent requires for adsorbing and capturing an allergen and inactivating its allergic activity can be effectively retained on the filter. Thus, the antiallergen filter of the present invention can effectively exert its anti-allergenic effect over a prolonged period of time.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: July 8, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Jun Inagaki, Ryousuke Suga, Takahiro Nakajima, Mitsuhito Teramoto, Taro Suzuki
  • Publication number: 20080038557
    Abstract: Disclosed are processes for making a collapsible water-containing capsule having a water phase encapsulated or dispersed in a pigment phase, the pigment phase comprising at least a first pigment component having a particle size of less than 1 ?m and a hydrophobic surface; wherein the water phase and the pigment phase is mixed by a mixing apparatus such as external energy sourcing type and container shaking type, fluidizer type, mechanical mixing type and container rotating type. Also disclosed are products made by the processes above. Also disclosed are preparation-at-use products for providing a collapsible water-containing capsule.
    Type: Application
    Filed: August 6, 2007
    Publication date: February 14, 2008
    Inventors: Takashi Sako, Kojo Tanaka, Takahiro Nakajima
  • Patent number: 7262590
    Abstract: A performance board for allowing a device under test and a testing apparatus to be electrically coupled with each other, includes a base substrate on which the device under test is mounted, a first adaptor part provided with a plurality of coaxial connectors for allowing a plurality of coaxial cables electrically coupled to a plurality of first pins of the device under test respectively and the testing apparatus to be electrically coupled with each other and a second adaptor part provided with a plurality of via holes for allowing a plurality of wirings electrically coupled to a plurality of second pins of the device under test respectively and the testing apparatus to be electrically coupled with each other.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: August 28, 2007
    Assignee: Advantest Corporation
    Inventor: Takahiro Nakajima
  • Publication number: 20070149757
    Abstract: The present invention provides processes for producing polyester. In one of the embodiments, the invention provides a process for producing polyester, comprising adding a catalyst in a polycondensation reaction, esterification reaction or transesterification reaction between components comprising at least a polyfunctional alcohol and at least a polyfunctional carboxylic acid or ester-forming derivative of a polyfunctional carboxylic acid to produce the polyester; and obtaining the polyester, wherein the polymerization catalyst comprises an aluminum substance and a phosphorus compound, wherein the aluminum substance is selected from the group consisting of aluminum hydroxide and aluminum alkoxides, and wherein the phosphorus compound has an aromatic ring structure.
    Type: Application
    Filed: February 22, 2007
    Publication date: June 28, 2007
    Applicant: Toyo Boseki Kabushiki Kaisha
    Inventors: Takahiro NAKAJIMA, Ken-ichi Tsukamoto, Shoichi Gyobu, Mitsuyoshi Kuwata
  • Publication number: 20070131116
    Abstract: An antiallergen filter of the present invention is characterized in that a water-insoluble high-molecular weight anti-allergenic agent having a phenolic hydroxyl group and a moisture-absorbing material are carried on a filter. Because of using the water-insoluble high-molecular weight substance as an anti-allergenic agent, the antiallergen filter of the present invention is free from a problem that the anti-allergenic agent flows and drops or is detached from the filter due to moisture in the atmosphere, etc. even in a highly humid environment or the like. Further, since the moisture-absorbing material is carried on the filter, moisture that the anti-allergenic agent requires for adsorbing and capturing an allergen and inactivating its allergic activity can be effectively retained on the filter. Thus, the antiallergen filter of the present invention can effectively exert its anti-allergenic effect over a prolonged period of time.
    Type: Application
    Filed: March 26, 2004
    Publication date: June 14, 2007
    Inventors: Jun Inagaki, Ryousuke Suga, Takahiro Nakajima, Mitsuhito Teramoto, Taro Suzuki
  • Publication number: 20070106055
    Abstract: The invention provides a polyester produced in the presence of a polycondensation catalyst comprising at least one compound selected from a group consisting of aluminum compounds and at least one compound selected from a group consisting of phosphorus compounds and being excellent in color tone, thermal stability, and transparency and improved in terms of insoluble particles. Particularly, the invention provides a polyester in which the content of an aluminum containing insoluble particles in the polyester is 3500 ppm or lower and a polyester which has a haze value of 2% or lower when being formed into a monoaxially oriented film. The aluminum catalyst for attaining these characteristics and properties may be polyester polymerization catalyst obtained by mixing an aluminum compound and a phosphorus compound in a solvent and has specified spectral characteristics in the side measurement of 31P-NMR spectrum and 27Al-NMR spectrum.
    Type: Application
    Filed: February 8, 2005
    Publication date: May 10, 2007
    Inventors: Katsuhiko Kageyama, Kenichi Funaki, Masaki Fuchikami, Satoru Nakagawa, Kazuo Katayose, Takahiro Nakajima, Naoki Watanabe, Fumikazu Yoshida, Tetsumori Atsuchi, Shoichi Gyobu, Haruo Matsumoto, Ryuichi Murashige, Gaku Maruyama, Yoshiko Akitomo, Hideki Shimizu
  • Patent number: 7208565
    Abstract: This invention provides a novel polycondensation catalyst using no antimony compound, polyester produced by using the same, and a process for producing polyester. A novel catalyst comprising an aluminum compound and a phosphorus compound is used as the polycondensation catalyst in producing polyester. The polyester of this invention can be applied to fibers for clothes, fibers for industrial materials, various films, sheets and molded articles such as bottles and engineering plastics, as well as coatings and adhesives.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: April 24, 2007
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Takahiro Nakajima, Ken-ichi Tsukamoto, Shoichi Gyobu, Mitsuyoshi Kuwata
  • Patent number: 7199212
    Abstract: A novel polymerization catalyst for polyesters, which does not contain any germanium or antimony compound as the main component; polyesters produced with the catalyst; and a process for producing polyesters. This polymerization catalyst is excellent in catalytic activity, little causes thermal degradation of polyesters in melt molding even when neither deactivated nor removed, and can give thermally stable polyesters which little generate foreign matter and are excellent in transparency and color. The polymerization catalyst is one which contains as the first metal-containing component at least one member selected from the group consisting of aluminum and aluminum compounds and which gives polyethylene terephthalate (PET) having a thermal stability parameter (TS) satisfying the relationship: (1) TS<0.3.
    Type: Grant
    Filed: December 25, 2000
    Date of Patent: April 3, 2007
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Takahiro Nakajima, Kenichi Tsukamoto, Shoichi Gyobu, Maki Sato
  • Publication number: 20070065649
    Abstract: The invention is a polyester resin mainly comprising a terephthalic acid component and a glycol component, wherein the fluorescence spectrum obtained by irradiating the polyester resin with excited light having a wavelength of 343 nm has a fluorescence intensity at 450 nm (B0) of 20 or lower. The resin makes it possible to efficiently produce a shaped article, especially a heat-resistant blow-molded article, that has excellent transparency and a moderate and stable crystallization rate and excellent heat-resistance dimensional stability, and is prevented from emitting fluorescence when irradiated with UV rays, and which is excellent in long-run continuous workability with no mold contamination, and which provides a wrapping material having excellent flavor retentiveness.
    Type: Application
    Filed: February 26, 2004
    Publication date: March 22, 2007
    Applicant: TOYO BOSEKI KAUSHIKI KAISHA
    Inventors: Yoshinao Matsui, Atsushi Hara, Yasuki Nakai, Fumiaki Nishinaka, Keiichiro Togawa, Naoki Nishimori, Takahiro Nakajima, Koji Yoshida, Hirota Nagano, Kenichi Inuzuka, Osamu Kimura, Yoshitaka Eto
  • Publication number: 20060278086
    Abstract: An air cleaner of the present invention, wherein an inlet port 4 and an outlet port 5 are formed and provided with air blower means 1 therein, an antiallergenic filter having an aromatic hydroxyl compound is installed in the air flow passage of the air blower means 1 in a main body 2, and the inlet port 4 formed in the main body 2 is provided at the lower part of the front panel, such that the suction air flow may be formed along the floor plane 3, whereby pollen and dead mites, and the like, which are present in a vicinity of a floor plane 3 can be efficiently sucked to inactivate allergic activity. A treating solution of the present invention is characterized in that it is prepared by dissolving and/or dispersing a water-soluble material and a water-insoluble material in a mixed solvent of water and a cellosolve and/or a carbitol. A method of manufacturing functional filter according to the present invention is characterized in that the treating solution above is adhesion fixed to the filter base material.
    Type: Application
    Filed: March 26, 2004
    Publication date: December 14, 2006
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Jun Inagaki, Ryou Katou, Ryousuke Suga, Takahiro Nakajima, Yutaka Mori, Naotsugu Souma, Kouhei Hashiguchi, Kazuo Gensui
  • Patent number: 7144614
    Abstract: This invention provides a novel polymerization catalyst other than antimony compounds, polyester produced by using the same and a process for producing polyester. The polycondensation catalyst of this invention is a polyester polymerization catalyst comprising an aluminum compound and a phosphorus compound having a specific structure. Further, this invention relates to polyester produced by using this polyester polymerization catalyst and a process for producing polyester. Further, this invention relates to fibers, films and hollow molded articles comprising the polyester.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: December 5, 2006
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Takahiro Nakajima, Ken-ichi Tsukamoto, Shoichi Gyobu, Nobuo Moriyama, Mitsuyoshi Kuwata, Yoshinao Matsui, Seisyu Hayashi, Katsuya Ito, Masaou Matsuda
  • Patent number: 7132383
    Abstract: A polymerization catalyst for polyester production which contains neither a germanium compound nor an antimony compound as a major component. It contains aluminum as the main metallic ingredient, has excellent catalytic activity, and gives a polyester which is effectively inhibited from suffering thermal degradation, during melt molding, without deactivating or removing the catalyst, and is excellent in thermal stability, stability to thermal oxidation, and hydrolytic resistance. The polymerization catalyst contains as a first metallic ingredient at least one member selected among aluminum and compounds thereof and further contains a phosphorus compound represented by a specific chemical formula. The polyester produced with this catalyst is usable as fibers, films, sheets, various moldings including hollow moldings, etc.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: November 7, 2006
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Takahiro Nakajima, Kenichi Tsukamoto, Shoichi Gyobu, Fumikazu Yoshida, Maki Sato, Naoki Watanabe, Katsuhiko Kageyama, Mitsuyoshi Kuwata, Nobuo Moriyama, Haruo Matsumoto, Yoshitomo Ikehata, Yoshinao Matsui, Masaou Matsuda, Munekazu Okuhara, Hiroki Fukuda
  • Publication number: 20060172161
    Abstract: The reformer 100 includes: an evaporating unit 102 that has a source fuel inlet 114 through which hydrocarbon-containing source fuel 202 is introduced, and is capable of evaporating a source fuel 202 introduced through the source fuel inlet 114; a catalyst containing unit 104 that is provided in the evaporating unit 102 and stores a reforming catalyst 108, which is capable of inducing a reaction for reforming the source fuel 202 into a reformed fuel having higher hydrogen amount; and a hydrogen outlet 118 that is provided on the catalyst containing unit 104 so as to communicate with the catalyst containing unit 104.
    Type: Application
    Filed: January 31, 2006
    Publication date: August 3, 2006
    Applicants: Keio University, Daido Metal Company Ltd.
    Inventors: Toshihisa Ueda, Daesu Jun, Kenichiro Matsumoto, Takahiro Nakajima, Yasuo Ido, Shoji Nawa, Yukio Naruse, Shigeru Inami
  • Publication number: 20050212544
    Abstract: A performance board for allowing a device under test and a testing apparatus to be electrically coupled with each other, includes a base substrate on which the device under test is mounted, a first adaptor part provided with a plurality of coaxial connectors for allowing a plurality of coaxial cables electrically coupled to a plurality of first pins of the device under test respectively and the testing apparatus to be electrically coupled with each other and a second adaptor part provided with a plurality of via holes for allowing a plurality of wirings electrically coupled to a plurality of second pins of the device under test respectively and the testing apparatus to be electrically coupled with each other.
    Type: Application
    Filed: March 16, 2005
    Publication date: September 29, 2005
    Applicant: Advantest Corporation
    Inventor: Takahiro Nakajima
  • Publication number: 20040058805
    Abstract: A polymerization catalyst for polyester production which contains neither a germanium compound nor an antimony compound as a major component. It contains aluminum as the main metallic ingredient, has excellent catalytic activity, and gives a polyester which is effectively inhibited from suffering thermal degradation, during melt molding, without deactivating or removing the catalyst, and is excellent in thermal stability, stability to thermal oxidation, and hydrolytic resistance. The polymerization catalyst contains as a first metallic ingredient at least one member selected among aluminum and compounds thereof and further contains a phosphorus compound represented by a specific chemical formula. The polyester produced with this catalyst is usable as fibers, films, sheets, various moldings including hollow moldings, etc.
    Type: Application
    Filed: August 19, 2003
    Publication date: March 25, 2004
    Inventors: Takahiro Nakajima, Kenichi Tsukamoto, Shoichi Gyobu, Fumikazu Yoshida, Maki Sato, Naoki Watanabe, Katsuhiko Kageyama, Mitsuyoshi Kuwata, Nobuo Moriyama, Haruo Matsumoto, Yoshitomo Ikehata, Yoshinao Matsui, Masaou Matsuda, Munekazu Okuhara, Hiroki Fukuda