Patents by Inventor Masashi Hashimoto

Masashi Hashimoto 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).

METAL COMPLEX AND ORGANIC LIGHT-EMITTING DEVICE

Publication number: 20070278939

Abstract: There are provided a light-emitting device which emits light stably with high efficiency, and a novel metal complex for realizing the light-emitting device. The novel metal complex has terdentate coordination.

Type: Application

Filed: May 30, 2007

Publication date: December 6, 2007

Applicant: CANON KABUSHIKI KAISHA

Inventors: Akira Tsuboyama, Kazunori Ueno, Masashi Hashimoto
METAL COMPLEX, LIGHT-EMITTING DEVICE, AND IMAGE DISPLAY APPARATUS

Publication number: 20070259207

Abstract: There are provided a metal complex which is used as a novel compound for an organic EL device and an organic light-emitting device which uses the metal complex and has an optical output with high efficiency and high luminance. The novel metal complex has, in a partial structure thereof, a non-aromatic ring structure containing at least one olefin and an alkylene group containing at least one F atom, and an unsaturated heterocyclic ring structure containing at least one nitrogen atom. The organic light-emitting device includes a pair of electrodes including an anode and a cathode and at least one layer including an organic compound and interposed between the pair of electrodes, in which the layer including the organic compound contains a metal complex represented by the following structural formula.

Type: Application

Filed: April 30, 2007

Publication date: November 8, 2007

Applicant: CANON KABUSHIKI KAISHA

Inventors: MASASHI HASHIMOTO, TAKAO TAKIGUCHI, SHINJIRO OKADA
COMPOUND AND ORGANIC LIGHT-EMITTING ELEMENT

Publication number: 20070249878

Abstract: A high-performance organic light-emitting element and a novel organic compound realizing the above element are provided. A fluoranthene compound having a specific structure and an organic light-emitting element using the same are provided.

Type: Application

Filed: April 20, 2007

Publication date: October 25, 2007

Applicant: CANON KABUSHIKI KAISHA

Inventors: Hironobu Iwawaki, Chika Negishi, Shinjiro Okada, Takao Takiguchi, Akihiro Senoo, Masashi Hashimoto
FLUORENE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME

Publication number: 20070232841

Abstract: A fluorene derivative represented by the following structural formula. An organic electroluminescence device including a pair of electrodes, and at least one layer containing an organic compound interposed between the pair of the electrodes. The at least one layer containing the organic compound contains the fluorene derivative. The layer containing the fluorene derivative serves as a light-emitting layer.

Type: Application

Filed: March 14, 2007

Publication date: October 4, 2007

Applicant: CANON KABUSHIKI KAISHA

Inventors: SATOSHI IGAWA, SHINJIRO OKADA, TAKAO TAKIGUCHI, MASASHI HASHIMOTO, NAOKI YAMADA
METAL COMPLEX, LIGHT-EMITTING DEVICE, AND DISPLAY APPARATUS

Publication number: 20070228940

Abstract: A metal complex is provided which is used for an organic EL device and an organic light-emitting device which outputs light with high luminance and high efficiency. The metal complex has a structure in which a nitrogen atom in a 6- to 8-membered non-aromatic cyclic group is bonded to a metal atom. The organic light-emitting device includes a pair of electrodes which are an anode and a cathode, and an organic compound layer interposed between the electrodes. The organic compound layer contains the metal complex represented by the following structural formula.

Type: Application

Filed: March 22, 2007

Publication date: October 4, 2007

Applicant: CANON KABUSHIKI KAISHA

Inventors: Masashi Hashimoto, Takao Takiguchi, Shinjiro Okada
Light-emitting device

Publication number: 20070184302

Abstract: The present invention provides an organic EL device utilizing phosphorescence which can be driven at a low voltage, which realizes high luminance and high efficiency, and which has a long lifetime. The organic EL device of the present invention includes an organic light-emitting layer composed of at least a host material and a dopant, wherein the dopant is a phosphorescent compound containing a halogen atom, and the host material is a linear aromatic compound having no aromatic substituent at a side thereof.

Type: Application

Filed: September 14, 2005

Publication date: August 9, 2007

Applicant: CANON KABUSHIKI KAISHA

Inventors: Hironobu Iwawaki, Shinjiro Okada, Takao Takiguchi, Satoshi Igawa, Masashi Hashimoto, Jun Kamatani, Kengo Kishino, Minako Nakasu, Ryota Ooishi
Compound and organic electroluminescent device using same

Publication number: 20070122652

Abstract: Provided is a novel compound that can be suitably used as a compound for an organic EL device. The compound is represented by general formula (1): wherein x, y and z are an integer of 0 to 3 with x+z>1; R3, R15, R16, R17, and R18 are hydrogen or a linear or branched alkyl; R1, R2, R4, and R5 are hydrogen, a linear or branched alkyl, or a substituted or unsubstituted aryl with at least one being a substituted or unsubstituted aryl; A is hydrogen, a linear or branched alkyl, or group B: (wherein R6, R7, R8, R9, and R10 are hydrogen, a linear or branched alkyl, or a substituted or unsubstituted aryl); R11, R12, R13, and R14 are hydrogen, a linear or branched alkyl, or a substituted or unsubstituted aryl; and each CH on the benzene ring may be replaced by nitrogen.

Type: Application

Filed: September 28, 2005

Publication date: May 31, 2007

Applicant: CANON KABUSHIKI KAISHA

Inventors: Masashi Hashimoto, Shinjiro Okada, Takao Takiguchi, Jun Kamatani, Satoshi Iqawa, Minako Nakasu, Hironobu Iwawaki, Ryota Ooishi
Light-emitting device, organic compound and display

Publication number: 20070057250

Abstract: There are provided an organic light-emitting device having a light output of a high emission efficiency and a high luminance and having high durability and a novel organic compound that enables the device to be attained. An organic compound of a long fluorescence lifetime represented by an organic compound having, in a molecule, at least one partial structure comprising an unsubstituted or substituted indole ring and at least one partial structure comprising an unsubstituted or substituted carbazole ring is used in an organic light-emitting device.

Type: Application

Filed: November 19, 2004

Publication date: March 15, 2007

Applicant: CANON KABUSHIKI KAISHA

Inventors: Takao Takiguchi, Shinjiro Okada, Akira Tsuboyama, Satoshi Igawa, Jun Kamatani, Masashi Hashimoto
Non-sticky water-based conformal coating material

Publication number: 20060178479

Abstract: A non-sticky water-based coating material in the form of a film applied to the face of a circuit board that is loaded with electronic parts; which comes into contact with the outside environment. The coating material can be formed into the film at room temperature without using a coalescence, does not contain a solvent and forms a membrane having flexibility, low Young's modulus, favorable adhesive properties, moisture resistance and insulating properties. Specifically, the non-sticky water-based conformal coating material includes a resin wherein a flexible acrylic resin having glass transition temperature of at most 0° C. is the main chain and a vinyl polymer having a glass transition temperature of at least 20° C. is grafted to the flexible acrylic resin; the content of the vinyl polymer being 10 to 70% by weight based on the flexible acrylic resin.

Type: Application

Filed: April 7, 2006

Publication date: August 10, 2006

Inventors: Masashi Hashimoto, Hideo Maeda
Organic electroluminescent device and display apparatus

Publication number: 20060066225

Abstract: The present invention provides a phosphorescent luminescent device which has high-efficiency and a long lifetime. The organic electroluminescent device according to the present invention includes a pair of electrodes and an organic layer disposed between the pair of electrodes, wherein the organic layer has at least a light-emitting layer, and the light-emitting layer include at least a host material and dopants containing at least a first dopant and a second dopant, and wherein a triplet lowest excitation level of the first dopant is higher than a triplet lowest excitation level of the host material, and a triplet lowest excitation level of the second dopant is lower than a triplet lowest excitation level of the host material.

Type: Application

Filed: September 27, 2005

Publication date: March 30, 2006

Applicant: CANON KABUSHIKI KAISHA

Inventors: Kengo Kishino, Shinjiro Okada, Satoshi Igawa, Masashi Hashimoto, Hironobu Iwawaki, Minako Kurokawa, Jun Kamatani
Compound and organic electroluminescense device using the same

Publication number: 20060003171

Abstract: A compound represented by the following general formula (1). R3—(X)x-(A)a-(Y)y-(B)b-(Z)z-R12??(1) (A, B, X, Y, and Z represent the following general formulae, and CH on a phenylene ring of each of X, Y, and Z may be replaced with an N atom. a, b, x, y, and z each independently represent an integer of 0 to 5, and a?1, y?1, and a+b?2. (R1 to R14 each independently represent a hydrogen atom, or a linear or branched alkyl group.)). The compound can be suitably used as a compound for an organic EL device.

Type: Application

Filed: May 24, 2005

Publication date: January 5, 2006

Applicant: CANON KABUSHIKI KAISHA

Inventors: Satoshi Igawa, Shinjiro Okada, Takao Takiguchi, Jun Kamatani, Masashi Hashimoto, Hironobu Iwawaki, Kengo Kishino, Minako Kurokawa
Light-emitting device

Publication number: 20050276994

Abstract: The present invention provides a light-emitting device which can be driven at a low voltage and has high luminance, high efficiency, and has a long lifetime even as an organic EL device using phosphorescence. The light-emitting device of the present invention is a light-emitting device including an anode, a cathode, and an organic light-emitting layer sandwiched between the anode and the cathode, in which the organic light-emitting layer is composed of a host material and one or more kinds of dopants, a difference in electron affinity between the host material and at least one kind of the dopants is 0.3 eV or less, and a difference in ionization potential between the host material and the at least one kind of the dopants is 0.8 eV or less.

Type: Application

Filed: May 18, 2005

Publication date: December 15, 2005

Applicant: CANON KABUSHIKI KAISHA

Inventors: Hironobu Iwawaki, Shinjiro Okada, Takao Takiguchi, Satoshi Igawa, Masashi Hashimoto, Manabu Furugori, Kengo Kishino, Minako Kurokawa
Case for remote control key

Publication number: 20050223766

Abstract: A portable remote control key case including a first case shell and a second case shell that are securely fastened to each other. The case includes a case body, which has a component chamber and a key socket, and a mechanical key, which is partially received in the key socket. First and second engagement projections are formed extending across a boundary between the first and second case shells. The mechanical key includes clamp portions for clamping the first and second engagement projections.

Type: Application

Filed: March 31, 2005

Publication date: October 13, 2005

Inventors: Masashi Hashimoto, Tokio Shimura, Mitsuru Nakagawa
Synchronous dram system with control data

Publication number: 20050182914

Abstract: A memory circuit (14) having features specifically adapted to permit the memory circuit (14) to serve as a video frame memory is disclosed. The memory circuit (14) contains a dynamic random access memory array (24) with buffers (18, 20) on input and output data ports (22) thereof to permit asynchronous read, write and refresh accesses to the memory array (24). The memory circuit (14) is accessed both serially and randomly. An address generator (28) contains an address buffer register (36) which stores a random access address and an address sequencer (40) which provides a stream of addresses to the memory array (24). An initial address for the stream of addresses is the random access address stored in the address buffer register (36).

Type: Application

Filed: April 11, 2005

Publication date: August 18, 2005

Inventors: Masashi Hashimoto, Gene Frantz, John Moravec, Jean-Pierre Dolait
SDRAM with command decoder coupled to address registers

Patent number: 6910096

Abstract: A memory circuit (14) having features specifically adapted to permit the memory circuit (14) to serve as a video frame memory is disclosed. The memory circuit (14) contains a dynamic random access memory array (24) with buffers (18, 20) on input and output data ports (22) thereof to permit asynchronous read, write and refresh accesses to the memory array (24). The memory circuit (14) is accessed both serially and randomly. An address generator (28) contains an address buffer register (36) which stores a random access address and an address sequencer (40) which provides a stream of addresses to the memory array (24). An initial address for the stream of addresses is the random access address stored in the address buffer register (36).

Type: Grant

Filed: June 2, 2003

Date of Patent: June 21, 2005

Assignee: Texas Instruments Incorporated

Inventors: Masashi Hashimoto, Gene A. Frantz, John Victor Moravec, Jean-Pierre Dolait
SDRAM with command decoder, address registers, multiplexer, and sequencer

Patent number: 6895465

Abstract: A memory circuit (14) having features specifically adapted to permit the memory circuit (14) to serve as a video frame memory is disclosed. The memory circuit (14) contains a dynamic random access memory array (24) with buffers (18, 20) on input and output data ports (22) thereof to permit asynchronous read, write and refresh accesses to the memory array (24). The memory circuit (14) is accessed both serially and randomly. An address generator (28) contains an address buffer register (36) which stores a random access address and an address sequencer (40) which provides a stream of addresses to the memory array (24). An initial address for the stream of addresses is the random access address stored in the address buffer register (36).

Type: Grant

Filed: March 31, 2004

Date of Patent: May 17, 2005

Assignee: Texas Instruments Incorporated

Inventors: Masashi Hashimoto, Gene A. Frantz, John Victor Moravec, Jean-Pierre Dolait
Non-sticky water-based conformal coating material

Publication number: 20050075459

Abstract: The present invention provides a non-sticky water-based coating material, which can be formed into a film at room temperature without using a coalescence, does not contain a solvent and forms a membrane having flexibility, low Young's modulus, favorable adhesive properties, moisture resistance and insulating properties. Specifically, the present invention relates to a non-sticky water-based conformal coating material comprising a resin wherein a flexible acrylic resin having glass transition temperature of at most 0° C. is the main chain and a vinyl polymer having a glass transition temperature of at least 20° C. is grafted to the flexible acrylic resin; the content of the vinyl polymer being 10 to 70% by weight based on the flexible acrylic resin.

Type: Application

Filed: October 1, 2004

Publication date: April 7, 2005

Inventors: Masashi Hashimoto, Hideo Maeda
Method for efficient laser isotope separation and enrichment of silicon

Patent number: 6800827

Abstract: A method for laser-assisted separation and enrichment of silicon isotopes such as 28Si, 29Si and 30Si on the basis of infrared multiple-photon dissociation of silicon halides represented by Si2F6, wherein the silicon halides are irradiated synchronously with multiple infrared pulsed laser beams at different wavelengths.

Type: Grant

Filed: August 7, 2002

Date of Patent: October 5, 2004

Assignees: Japan Atomic Energy Research Institute, Nuclear Development Corporation

Inventors: Atsushi Yokoyama, Hironori Ohba, Masashi Hashimoto, Takemasa Shibata, Shigeyoshi Arai, Takeshi Ishii, Akio Ohya
Synchronous DRAM system with control data

Publication number: 20040186950

Abstract: A memory circuit (14) having features specifically adapted to permit the memory circuit (14) to serve as a video frame memory is disclosed. The memory circuit (14) contains a dynamic random access memory array (24) with buffers (18, 20) on input and output data ports (22) thereof to permit asynchronous read, write and refresh accesses to the memory array (24). The memory circuit (14) is accessed both serially and randomly. An address generator (28) contains an address buffer register (36) which stores a random access address and an address sequencer (40) which provides a stream of addresses to the memory array (24). An initial address for the stream of addresses is the random access address stored in the address buffer register (36).

Type: Application

Filed: March 31, 2004

Publication date: September 23, 2004

Inventors: Masashi Hashimoto, Gene A. Frantz, John Victor Moravec, Jean-Pierre Dolait
Process of operating a DRAM system

Patent number: 6748483

Abstract: A memory circuit (14) having features specifically adapted to permit the memory circuit (14) to serve as a video frame memory is disclosed. The memory circuit (14) contains a dynamic random access memory array (24) with buffers (18, 20) on input and output data ports (22) thereof to permit asynchronous read, write and refresh accesses to the memory array (24). The memory circuit (14) is accessed both serially and randomly. An address generator (28) contains an address buffer register (36) which stores a random access address and an address sequencer (40) which provides a stream of addresses to the memory array (24). An initial address for the stream of addresses is the random access address stored in the address buffer register (36).

Type: Grant

Filed: June 2, 2003

Date of Patent: June 8, 2004

Assignee: Texas Instruments Incorporated

Inventors: Masashi Hashimoto, Gene A. Frantz, John Victor Moravec, Jean-Pierre Dolait

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