Patents by Inventor Masamichi Fujihira
Masamichi Fujihira 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).
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Patent number: 7659416Abstract: Enediyne compounds of the formula: (1) characterized in that the structure thereof is very simple and the production process is easy, and that the molecular length thereof is shorter than those of compounds having been proposed. Consequently, electrode assemblies comprising any of these enediyne compounds are highly promising in the application to nanomolecular wiring (nanomolecular wire) whose production has been difficult.Type: GrantFiled: March 17, 2006Date of Patent: February 9, 2010Assignees: Tokyo Institute of Technology, Nissan Chemical Industries, Ltd.Inventors: Masamichi Fujihira, Fumie Sato, Yuuki Takayama, Go Ono
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Patent number: 7507957Abstract: A problem to be resolved by the invention resides in providing a multifunction analyzing apparatus for detecting a shape with high resolution and physical property information capable of not only successively reading a base arrangement from end to end but also specifying a position hybridized by known RNA with regard to a single piece of DNA elongated in one direction on a board. A microscope system of the invention is provided with a fluorescence microscope, a scanning near field microscope and a scanning probe microscope as a detecting system, the microscopes are fixed to a switching mechanism and can be moved to a position at which the various microscopes can observe the same portion of a sample by switching operation of the mechanism. The microscope system of the invention is provided with a function capable of directly detecting a shape and physical property information of one piece of DNA by the scanning probe microscope by multifunction scanning.Type: GrantFiled: August 31, 2005Date of Patent: March 24, 2009Assignee: SII NanoTechnology Inc.Inventors: Masamichi Fujihira, Masatoshi Yasutake, Tatsuaki Ataka
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Publication number: 20090036698Abstract: Enediyne compounds of the formula: (1) characterized in that the structure thereof is very simple and the production process is easy, and that the molecular length thereof is shorter than those of compounds having been proposed. Consequently, electrode assemblies comprising any of these enediyne compounds are highly promising in the application to nanomolecular wiring (nanomolecular wire) whose production has been difficult.Type: ApplicationFiled: March 17, 2006Publication date: February 5, 2009Inventors: Masamichi Fujihira, Fumie Sato, Yuuki Takayama, Go Ono
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Publication number: 20060060778Abstract: A problem to be resolved by the invention resides in providing a multifunction analyzing apparatus for detecting a shape with high resolution and physical property information capable of not only successively reading a base arrangement from end to end but also specifying a position hybridized by known RNA with regard to a single piece of DNA elongated in one direction on a board. A microscope system of the invention is provided with a fluorescence microscope, a scanning near field microscope and a scanning probe microscope as a detecting system, the microscopes are fixed to a switching mechanism and can be moved to a position at which the various microscopes can observe the same portion of a sample by switching operation of the mechanism. The microscope system of the invention is provided with a function capable of directly detecting a shape and physical property information of one piece of DNA by the scanning probe microscope by multifunction scanning.Type: ApplicationFiled: August 31, 2005Publication date: March 23, 2006Inventors: Masamichi Fujihira, Masatoshi Yasutake, Tatsuaki Ataka
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Patent number: 6868786Abstract: A patterning method for micro-contact printing involves the steps of: applying a resin on a master having projected patterns, hardening the resin and thereafter removing the hardened resin from the master to make a stamp of the resin; applying a molecular ink including hydrophobic molecules dispersed in a solvent on the stamp; forming micro-contact printed patterns of the hydrophobic molecular layer on a substrate by means of the stamp on which the molecular ink is applied; dipping the substrate with micro-contact printed patterns in a hydrophilic molecule solution dispersed in a solvent to give chemical modification to the areas of the surface of the substrate around the micro-contact printed patterns, the solution including hydrophilic molecules having a chain length shorter than the chain length of hydrophobic molecules included in the molecular ink is used as the hydrophilic molecule solution.Type: GrantFiled: December 12, 2003Date of Patent: March 22, 2005Assignee: Dainippon Printing Co., Ltd.Inventors: Masamichi Fujihira, Uichi Akiba, Hiroki Okui, Shintaro Fujii, Masaaki Kurihara
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Patent number: 6817293Abstract: A patterning method for micro-contact printing involves the steps of: applying a resin on a master having projected patterns, hardening the resin and thereafter removing the hardened resin from the master to make a stamp of the resin; applying a molecular ink including hydrophobic molecules dispersed in a solvent on the stamp; forming micro-contact printed patterns of the hydrophobic molecular layer on a substrate by means of the stamp on which the molecular ink is applied; dipping the substrate with micro-contact printed patterns in a hydrophilic molecule solution dispersed in a solvent to give chemical modification to the areas of the surface of the substrate around the micro-contact printed patterns, the solution including hydrophilic molecules having a chain length shorter than the chain length of hydrophobic molecules included in the molecular ink is used as the hydrophilic molecule solution.Type: GrantFiled: March 27, 2002Date of Patent: November 16, 2004Assignee: Dainippon Printing Co., Ltd.Inventors: Masamichi Fujihira, Uichi Akiba, Hiroki Okui, Shintaro Fujii, Masaaki Kurihara
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Publication number: 20040134883Abstract: In patterning method with micro-contact printing comprising the steps of: applying resin on a master having projected patterns, hardening the resin and thereafter removing the hardened resin from the master to make a stamp of the resin; applying molecular ink including hydrophobic molecules dispersed in solvent on the stamp and forming micro-contact printed patterns of hydrophobic molecular layer on a substrate by means of the stamp on which the molecular ink is applied and; dipping the substrate with micro-contact printed patterns in hydrophilic molecule solution dispersed in solvent to give chemical modification to the areas of the surface of substrate around the micro-contact printed patterns, solution including hydrophilic molecules having chain length shorter than the chain length of hydrophobic molecules included in the molecular ink is used as the hydrophilic molecule solution.Type: ApplicationFiled: December 12, 2003Publication date: July 15, 2004Applicant: DAINIPPON PRINTING CO., LTD.Inventors: Masamichi Fujihira, Uichi Akiba, Hiroki Okui, Shintaro Fujii, Masaaki Kurihara
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Publication number: 20030010241Abstract: In patterning method with micro-contact printing comprising the steps of: applying resin on a master having projected patterns, hardening the resin and thereafter removing the hardened resin from the master to make a stamp of the resin; applying molecular ink including hydrophobic molecules dispersed in solvent on the stamp and forming micro-contact printed patterns of hydrophobic molecular layer on a substrate by means of the stamp on which the molecular ink is applied and; dipping the substrate with micro-contact printed patterns in hydrophilic molecule solution dispersed in solvent to give chemical modification to the areas of the surface of substrate around the micro-contact printed patterns, solution including hydrophilic molecules having chain length shorter than the chain length of hydrophobic molecules included in the molecular ink is used as the hydrophilic molecule solution.Type: ApplicationFiled: March 27, 2002Publication date: January 16, 2003Inventors: Masamichi Fujihira, Uichi Akiba, Hiroki Okui, Shintaro Fujii, Masaaki Kurihara
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Patent number: 6229609Abstract: An apparatus capable of measuring the topography and the optical characteristics of the surface of a sample at high resolution irrespective of the transmittance and the conductivity of the sample is realized. The apparatus comprises a probe, a light source for illuminating a sample with light, a photoelectric converter device and optics for receiving light transmitted through the sample or light reflected by the sample, a laser emitting laser light for detecting deflections of the probe, a condenser lens for directing the laser light to the rear surface of the probe, a detection system for detecting reflected light, a rough-motion mechanism and a fine-motion mechanism for moving the sample and the probe relative to each other, a control means for controlling the distance between the sample and the probe, and a computer for controlling the whole apparatus. The probe has a front end portion and a light-propagating body continuous with the front end portion.Type: GrantFiled: April 11, 1994Date of Patent: May 8, 2001Assignee: Seiko Instruments Inc.Inventors: Hiroshi Muramatsu, Tatsuaki Ataka, Masamichi Fujihira, Norio Chiba
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Patent number: 6215121Abstract: A signal having a resonant frequency of a cantilever is output by a first oscillator, and supplied to a vibrating element and a control unit to oscillate a probe. A low frequency signal having a large amplitude is output by a second oscillator and supplied to a piezoelectric scanning apparatus. The probe is periodically and relatively moved with respect to the sample between a position where the sample surface is penetrated by the probe and another position where the probe does not penetrate the sample surface and is outside the range of atomic forces caused by the sample. During this movement, the probe movement may be analyzed to obtain a plurality of physical characteristics about the sample, e.g.Type: GrantFiled: July 29, 1998Date of Patent: April 10, 2001Assignee: Seiko Instruments Inc.Inventors: Masamichi Fujihira, Masatoshi Yasutake, Tatsuya Miyatani, Toshihiko Sakuhara, Kazutoshi Watanabe
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Patent number: 6121604Abstract: An optical probe is used in a near-field effect microscope for performing topographical observation and physical property measurement on a surface of a sample. The optical probe comprises an optical resonator having an optical fiber having at least one microscopic projection composed of a dielectric material disposed at an end portion of the optical fiber for transmitting light.Type: GrantFiled: April 22, 1998Date of Patent: September 19, 2000Assignees: The Head of Agency of Industrial Science and Technology, Seiko Instruments Inc.Inventors: Takashi Hiraga, Tetsuo Moriya, Akihiro Mito, Masamichi Fujihira, Hiroshi Muramatsu, Noritaka Yamamoto
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Patent number: 5654131Abstract: There is provided an optical memory medium comprising a flat plate modified on the surface thereof by a photolytic residual group, an optical recording apparatus comprising an optical probe having a microscopic aperture on the leading end thereof, a light source, X-Y-Z position control means, and a controller for controlling the apparatus as whole and an apparatus for reading the optical memory medium comprising the optical memory medium, a friction detecting probe, an X-Y-Z position control means and a controller for controlling the apparatus as a whole.Type: GrantFiled: February 1, 1996Date of Patent: August 5, 1997Assignee: Seiko Instruments Inc.Inventors: Masamichi Fujihira, Hiroshi Muramatsu, Norio Chiba, Tatsuaki Ataka
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Patent number: 5513168Abstract: There is provided an optical memory medium comprising a flat plate modified on the surface thereof by a photolytic residual group, an optical recording apparatus comprising an optical probe having a microscopic aperture on the leading end thereof, a light source, X-Y-Z position control means, and a controller for controlling the apparatus as whole and an apparatus for reading the optical memory medium comprising the optical memory medium, a friction detecting probe, an X-Y-Z position control means and a controller for controlling the apparatus as a whole.Type: GrantFiled: October 18, 1994Date of Patent: April 30, 1996Assignees: Seiko Instruments Inc., Masamichi FujihiraInventors: Masamichi Fujihira, Hiroshi Muramatsu, Norio Chiba, Tatsuaki Ataka
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Patent number: 5449901Abstract: An optical scan type tunnel microscope based on a new principle, having higher resolution, is provided. The apparatus of the invention is comprised of at least an optical fiber 3 whose head portion is covered by an energy acceptor 6, a prism on which a sample which contains an energy donator 7 or is covered by the energy donator 7 is placed, a XY-axis transfer mechanism 9, XY-axis control mechanism 10, Z-axis transfer mechanism 11, Z-axis control mechanism 12, light source 13, optical system 14, and an optical detecting system 15.Type: GrantFiled: July 22, 1993Date of Patent: September 12, 1995Assignees: Seiko Instruments Inc., Masamichi FujihiraInventors: Masamichi Fujihira, Tatsuaki Ataka, Hiroshi Muramatsu
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Patent number: 5382332Abstract: An electrocatalyst for use in electrolytic reduction of carbon dioxide gas in an aqueous solution. The electrocatalyst is formed of nickel alkyl cyclam which is expressed by the general formula: ##STR1## where each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is selected from the group consisting of hydrogen atom and aliphatic saturated hydrocarbon group expressed by the formula of C.sub.n H.sub.2n+1 ; wherein at least one of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is the aliphatic saturated hydrocarbon group in which n is a number ranging from 1 to 22. The nickel alkyl cyclam as the electrocatalyst is excellent in stability and energy consumption improving effect while exhibiting a high carbon dioxide gas reduction effect, as compared with conventional nickel cyclam.Type: GrantFiled: August 23, 1993Date of Patent: January 17, 1995Assignees: Nissan Motor Co., Ltd., Masamichi FujihiraInventors: Masamichi Fujihira, Yoshiki Hirata, Kosaku Suga, Uichi Akiba
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Patent number: 5304795Abstract: A high resolution observation apparatus of material features with a photon scanning microscope. The apparatus detects evanescent light which depends on surface feature of a sample and detects detailed distribution of optical constants of the sample. Namely, the apparatus makes it possible to detect detailed distribution of transparency or refractive index within a sample material in higher resolution than the wavelength of the incident light which is irradiates to the sample material coated on the top surface of the optical prism. The apparatus includes means for maintaining a predetermined distance between the sample and an optical fiber tip or means for detecting a positioning signal. Further, it becomes possible to detect fluorescent condition of the sample.Type: GrantFiled: September 30, 1992Date of Patent: April 19, 1994Assignees: Seiko Instruments Inc., Masamichi FujihiraInventors: Masamichi Fujihira, Tatsuaki Ataka, Toshihiro Sakuhara
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Patent number: 5284563Abstract: An electrocatalyst for use in electrolytic reduction of carbon dioxide gas in an aqueous solution. The electrocatalyst is formed of nickel alkyl cyclam which is expressed by the general formula: ##STR1## where each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is selected from the group consisting of hydrogen atom and aliphatic saturated hydrocarbon group expressed by the formula of C.sub.n H.sub.2n+1 ; wherein at least one of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 is the aliphatic saturated hydrocarbon group in which n is a number ranging from 1 to 22. The nickel alkyl cyclam as the electrocatalyst is excellent in stability and energy consumption improving effect while exhibiting a high carbon dioxide gas reduction effect, as compared with conventional nickel cyclam.Type: GrantFiled: April 24, 1991Date of Patent: February 8, 1994Assignees: Nissan Motor Co., Ltd., Masamichi FujihiraInventors: Masamichi Fujihira, Yoshiki Hirata, Kosaku Suga, Uichi Akiba, Yasuo Nakamura
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Patent number: 4486272Abstract: A light transmissible working electrode, an auxiliary electrode and a reference electrode are provided in an electrolytic cell having a light transmissive window. The working electrode comprises, for instance, a thin film vapor deposited on inner surface of the light transmissive window. A sample solution containing components which cause photochemical reaction is introduced into the electrolytic cell. A step-functional light emitted from a monochromatic light source is irradiated into the electrolytic cell through the light transmissive window. When light is irradiated to the light transmitting window, the light passes through the working electrode to give an energy to the sample solution to bring about photochemical reaction.Concentrations of the components in the sample solution can be obtained from the difference between amplitude of current passing when the light is irradiated to the sample solution and amplitude when no light is irradiated.Type: GrantFiled: December 8, 1982Date of Patent: December 4, 1984Assignee: Hitachi, Ltd.Inventor: Masamichi Fujihira
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Patent number: 4403022Abstract: A chemically modified photoelectrochemical cell including at least one cathode and a plurality of anodes, at least said plurality of anodes being constituted with a semiconductor, each of said plurality of anodes being formed by fixing through covalent bonds molecules of at least one sensitizer dye on the surface of a light-transmissible flat plate of an n-type semiconductor or a light-transmissible flat plate covered with a thin film of an n-type semiconductor, and said plurality of anodes being disposed parallelly to each other and in the form of layers in an electrolyte solution, together with said at least one cathode. Thus, since this photoelectrochemical cell can convert photoenergy of a longer wavelength to electric energy with a high efficiency by making the use of the dye sensitization effect, sufficient practical utility to the photodevices is obtained.Type: GrantFiled: January 2, 1981Date of Patent: September 6, 1983Assignee: The President of Tohoku UniversityInventors: Tetsuo Osa, Masamichi Fujihira
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Patent number: 4269674Abstract: A method of preparing para-chlorotoluene by the electrolytic chlorination of toluene in an aqueous solution of hydrogen chloride or a metal halide as an electrolyte by passing an electric current from a cathode to an anode, both of which are immersed in the electrolyte, in order to form an active chlorine species which then reacts with toluene to produce the desired para-toluene. The anode is made of a carbonaceous material having cyclodextrin or a derivative thereof bonded onto its surface. The toluene that is introduced into the aqueous solution of electrolyte is included as a clathrate compound within the cyclodextrin.Type: GrantFiled: December 10, 1979Date of Patent: May 26, 1981Assignee: Kureha Kagaku Kogyo Kabushiki KaishaInventors: Tetsuo Osa, Masamichi Fujihira, Tomokazu Matsue, Takashi Yamauchi