Patents by Inventor Shunichi Matsumura
Shunichi Matsumura 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: 20240109286Abstract: A recording device, including a transport roller whose circumference length is different from nozzle array length in a transport direction, performs TP recording control to record a group of test patterns, in which a plurality of test patterns including a first patch and a second patch with different positions in the transport direction are arranged in a main scanning direction, and in which an amount of liquid ejected for a boundary area between the first patch and the second patch is different for each test pattern, wherein, in the TP recording control, records a first TP group and a second TP group at different positions in the transport direction onto a medium, transports the medium by a first distance based on the nozzle array length as a transport between the recording of the first patch and the second patch of the TP, and, as a transport between the recording of the second patch of the first TP group and the recording of the first patch of the second TP group, transports the medium by a second distanceType: ApplicationFiled: September 28, 2023Publication date: April 4, 2024Inventors: Tetsuya MATSUMURA, Shunichi AOYAGI, Takashi KOBAYASHI
-
Patent number: 11927923Abstract: A management apparatus in a time synchronization system includes a time variation information receiving unit configured to acquire time variation information and position information of a time synchronization apparatus, a position information classifying unit configured to classify time synchronization apparatuses into predetermined categories based on the acquired position information, a time variation analysis configured to determine majority based on whether patterns of time variation of the time synchronization apparatuses belonging to an identical category are identical to each other, and to analyze the time variation based on the determined results, and a filtering and delivery unit configured to output an instruction to block the time information received from the positioning satellite, to the time synchronization apparatus having abnormal time variation.Type: GrantFiled: March 5, 2019Date of Patent: March 12, 2024Assignee: Nippon Telegraph and Telephone CorporationInventors: Takaaki Hisashima, Hiroki Sakuma, Kaoru Arai, Ryuta Sugiyama, Shunichi Tsuboi, Osamu Kurokawa, Kazuyuki Matsumura
-
Patent number: 7759420Abstract: A layered silicate characterized by being ion-exchanged with an organic onium ion at 50-100% of its ion-exchange capacity, and by having a specific surface area of 2.5-100 m2/g, as well as a resin composition comprising a thermoplastic resin and the aforementioned layered silicate, the resin composition being characterized in that the layered silicate content is 0.01-20 parts by weight as inorganic ash with respect to 100 parts by weight of the thermoplastic resin, and the average number of layers of the layered silicate in the thermoplastic resin is 2-8 layers. Also, a film which comprises the resin composition.Type: GrantFiled: September 16, 2004Date of Patent: July 20, 2010Assignee: Teijin LimitedInventors: Kazuteru Kohno, Nobuaki Kido, Shunichi Matsumura
-
Patent number: 7754328Abstract: Coated carbon nanotubes coated with 0.01-100 parts by weight of at least one type of aromatic condensation polymer selected from the group consisting of wholly aromatic polyamides, wholly aromatic polyesters, aromatic polyester carbonates, aromatic polycarbonates, semi-aromatic polyesters and wholly aromatic azoles, with respect to 100 parts by weight of the carbon nanotubes, as well as a process for their production. Aromatic condensation polymer compositions comprising 0.01-100 parts by weight of the coated carbon nanotubes and 100 parts by weight of an aromatic condensation polymer, and molded articles formed using them.Type: GrantFiled: January 19, 2004Date of Patent: July 13, 2010Assignee: Teijin LimitedInventors: Masayuki Chokai, Hiroaki Kuwahara, Satoru Ohmori, Shunichi Matsumura, Kazuhiko Sato, Susumu Honda
-
Patent number: 7652124Abstract: There are provided a rigid heterocyclic polymer comprising rigid recurring units such as units represented by the following formulae (a) and (b): wherein X is O, S or NH, a production process thereof, and fibers comprising the polymer.Type: GrantFiled: April 12, 2005Date of Patent: January 26, 2010Assignees: Teijin Limited, Teijin Techno Products LimitedInventors: Masayuki Chokai, Anton Peter De Weijer, Hiroaki Kuwahara, Shunichi Matsumura
-
Publication number: 20080214772Abstract: There are provided a rigid heterocyclic polymer comprising rigid recurring units such as units represented by the following formulae (a) and (b): wherein X is O, S or NH, a production process thereof, and fibers comprising the polymer.Type: ApplicationFiled: April 12, 2005Publication date: September 4, 2008Inventors: Masayuki Chokai, Anton Peter De Weijer, Hiroaki Kuwahara, Shunichi Matsumura
-
Publication number: 20080069973Abstract: There is provided a retardation film that has high moisture resistance and good dimensional stability and can be incorporated into, for example, a liquid crystal display, to be effectively used for improvements in the visual quality of liquid crystals such as an improvement in view angle, an improvement in contrast and color compensation. The retardation film comprises an amorphous polyolefin copolymer. The amorphous polyolefin copolymer (a) comprises an ethylene unit and a norbornene unit, (b) the norbornene unit comprises two-chain parts, the tacticities of the two-chain parts are meso and racemo, and the meso two-chain parts/racemo two-chain parts ratio is 4 or more, and (c) the copolymer has a glass transition temperature of 100 to 180° C.Type: ApplicationFiled: September 7, 2005Publication date: March 20, 2008Applicant: Teijin LimitedInventors: Hideaki Nitta, Hironori Matsuda, Shunichi Matsumura
-
Patent number: 7338997Abstract: There is provided a carbon fiber precursor polymer which is composed of a polymer comprising 50 wt % or greater of an acrylonitrile component, wherein the isotactic triad proportion of the acrylonitrile structural chain composed of the acrylonitrile component is 35 mole percent or greater based on the total triad proportion of the acrylonitrile structural chain composed of the acrylonitrile component, the carbon fiber precursor polymer allowing flame retardant treatment to be carried out slowly from a low temperature range, and having satisfactory flame retardant properties including low heat generation.Type: GrantFiled: January 20, 2004Date of Patent: March 4, 2008Assignee: Teijin LimitedInventors: Hiroaki Kuwahara, Hirotaka Suzuki, Shunichi Matsumura
-
Publication number: 20070191525Abstract: A polyester resin composition which is a resin composition comprising a polyester and a laminar silicate that is 60-100% modified by organic phosphonium ion, wherein the content of the laminar silicate is 0.01-20 wt % as inorganic ash and the terminal OH group content is 0.1-45 eq/ton, as well as a process for its production and molded articles comprising it.Type: ApplicationFiled: March 3, 2005Publication date: August 16, 2007Applicant: TEIJIN LIMITEDInventors: Kazuteru Kohno, Nobuaki Kido, Rei Nishio, Shunichi Matsumura
-
Publication number: 20070106004Abstract: A layered silicate characterized by being ion-exchanged with an organic onium ion at 50-100% of its ion-exchange capacity, and by having a specific surface area of 2.5-100 m2/g, as well as a resin composition comprising a thermoplastic resin and the aforementioned layered silicate, the resin composition being characterized in that the layered silicate content is 0.01-20 parts by weight as inorganic ash with respect to 100 parts by weight of the thermoplastic resin, and the average number of layers of the layered silicate in the thermoplastic resin is 2-8 layers. Also, a film which comprises the resin composition.Type: ApplicationFiled: September 16, 2004Publication date: May 10, 2007Applicant: TEIJIN LIMITEDInventors: Kazuteru Kohno, Nobuaki Kido, Shunichi Matsumura
-
Patent number: 7189782Abstract: There is provided a film comprising a layered silicate cation-exchanged with an organic cation and a polyester or polycarbonate. The organic cation is represented by the following formula (I): (R)n-L+??(I) wherein R is a group represented by the following formula (I-1): wherein R1 is a divalent hydrocarbon group having 5 to 20 carbon atoms, and R2 is a divalent hydrocarbon group having 1 to 20 carbon atoms, an alkyl group, an aryl group or an aralkyl group, L+ is an ammonium ion, a phosphonium ion or a hetero aromatic ion, and n is an integer of 1 to 4, with the proviso that when L+ is an ammonium ion or a phosphonium ion, n is 4 and four Rs may be the same or different. This film has the layered silicate highly dispersed therein and is excellent in various properties such as mechanical properties and dimensional stability.Type: GrantFiled: September 10, 2003Date of Patent: March 13, 2007Assignee: Teijin LimitedInventors: Kiyonari Hashidzume, Nobuaki Kido, Shunichi Matsumura
-
Publication number: 20070031663Abstract: A wholly aromatic polyamide fiber which has excellent mechanical properties (toughness factor) and can be produced while attaining a satisfactory operation stability in the fiber formation step. The fiber comprises 100 parts by mass of a wholly aromatic polyamide and 0.05 to 20 parts by mass of particles of a lamellar clay mineral, e.g., hectorite, saponite, stevensite, beidellite, montmorillonite, or swelling mica.Type: ApplicationFiled: September 13, 2004Publication date: February 8, 2007Inventors: Susumu Honda, Hideaki Nitta, Shunichi Matsumura, Yasushige Yagura, Hiroshi Fujita, Sadahito Hashidate
-
Publication number: 20060188718Abstract: A composite fiber, which includes: 100 parts by weight of a wholly aromatic polyamide mainly including structural units of the following formulae (A) and (B): —NH—Ar1—NH—??(A) —OC—Ar2—CO—??(B) where in the formulae (A) and (B), Ar1 and Ar2 each independently represent a bivalent aromatic group having 6 to 20 carbon atoms; and 0.01 to 100 parts by weight of carbon nanotubes with an average diameter of 300 nm or less, and an average aspect ratio of 5.0 or more, characterized in that the carbon nanotubes are oriented in the fiber axis direction. It is excellent in mechanical characteristics.Type: ApplicationFiled: December 3, 2003Publication date: August 24, 2006Inventors: Hideaki Nitta, Masayuki Chokai, Susumu Honda, Satoru Ohmori, Shunichi Matsumura, Kazuhiko Sato, Masaaki Kawamura
-
Publication number: 20060183834Abstract: There is provided a carbon fiber precursor polymer which is composed of a polymer comprising 50 wt % or greater of an acrylonitrile component, wherein the isotactic triad proportion of the acrylonitrile structural chain composed of the acrylonitrile component is 35 mole percent or greater based on the total triad proportion of the acrylonitrile structural chain composed of the acrylonitrile component, the carbon fiber precursor polymer allowing flame retardant treatment to be carried out slowly from a low temperature range, and having satisfactory flame retardant properties including low heat generation.Type: ApplicationFiled: January 20, 2004Publication date: August 17, 2006Inventors: Hiroaki Kuwahara, Hirotaka Suzuki, Shunichi Matsumura
-
Publication number: 20060141238Abstract: The invention provides a porous film having a plurality of connected pores, and a process for its production. The porous film of the invention is a porous film formed from highly heat resistant poly(metaphenylene isophthalamide), and having specific ranges for the open areas and difference between them on both surfaces, as well as specified ranges for the mean pore sizes and porosity on both surfaces. The permeability and impregnation with respect to substances such as air and water, as well as the dynamic strength, are therefore excellent, and the porous film can be used for filters, and for curing resin-impregnated prepregs, multilayer wiring boards, electronic package substrates and the like employing the porous film as a core material.Type: ApplicationFiled: September 12, 2003Publication date: June 29, 2006Inventors: Takeshi Sasaki, Nobuaki Kido, Shunichi Matsumura
-
Publication number: 20060051579Abstract: Coated carbon nanotubes coated with 0.01-100 parts by weight of at least one type of aromatic condensation polymer selected from the group consisting of wholly aromatic polyamides, wholly aromatic polyesters, aromatic polyester carbonates, aromatic polycarbonates, semi-aromatic polyesters and wholly aromatic azoles, with respect to 100 parts by weight of the carbon nanotubes, as well as a process for their production. Aromatic condensation polymer compositions comprising 0.01-100 parts by weight of the coated carbon nanotubes and 100 parts by weight of an aromatic condensation polymer, and molded articles formed using them.Type: ApplicationFiled: January 19, 2004Publication date: March 9, 2006Applicant: TEIJIN LIMITEDInventors: Masayuki Chokai, Hiroaki Kuwahara, Satoru Ohmori, Shunichi Matsumura, Kazuhiko Sato, Susumu Honda
-
Publication number: 20060012061Abstract: A process for manufacturing a carbon fiber having a fiber diameter of 0.001 to 5 ?m and a narrow fiber size distribution, and a resin composition suitable for the manufacture of a carbon fiber. A resin composition comprising 100 parts by weight of a thermoplastic resin, 1 to 150 parts by weight of a carbon precursor organic compound (A) and 0.001 to 40 parts by weight of acopolymer of polymer segments (e1) and (e2) which satisfy a specific range of surface tension for the thermoplastic resin and a specific range of surface tension for the carbon precursor organic compound (A) at the same time.Type: ApplicationFiled: September 25, 2003Publication date: January 19, 2006Applicant: TEIJIN LIMITEDInventors: Masumi Hirata, Hiroshi Sakurai, Toru Sawaki, Tetsuo Ban, Satoru Ohmori, Shunichi Matsumura, Hideaki Nitta
-
Publication number: 20050228073Abstract: There is provided a polyester composition which can be suitably used as a molding material for fibers, films or resins having an enhanced elastic modulus and softening points. The thermoplastic resin composition comprises 100 parts by weight of a thermoplastic resin (A) and 0.01-10 parts by weight of a fibrous aluminum oxide filler (B) composed of a compound represented by the following formula (I): AlxOyHz??(I) (where x, y and z are numbers of 0-3, and x=(2y?z)/3 is satisfied), wherein the primary particles of the fibrous aluminum oxide filler have a mean fiber length of 10-1000 nm, a mean fiber diameter of 0.5-7 nm and a mean aspect ratio of 2000-5. The fibrous aluminum oxide filler (B) is preferably surface-coated with a silane coupling agent.Type: ApplicationFiled: August 7, 2003Publication date: October 13, 2005Inventors: Rei Nishio, Nobuaki Kido, Shunichi Matsumura
-
Publication number: 20050089698Abstract: There is provided a film comprising a layered silicate cation-exchanged with an organic cation and a polyester or polycarbonate. The organic cation is represented by the following formula (I): (R)n-L+??(I) wherein R is a group represented by the following formula (I-1): wherein R1 is a divalent hydrocarbon group having 5 to 20 carbon atoms, and R2 is a divalent hydrocarbon group having 1 to 20 carbon atoms, an alkyl group, an aryl group or an aralkyl group, L+ is an ammonium ion, a phosphonium ion or a hetero aromatic ion, and n is an integer of 1 to 4, with the proviso that when L+ is an ammonium ion or a phosphonium ion, n is 4 and four Rs may be the same or different. This film has the layered silicate highly dispersed therein and is excellent in various properties such as mechanical properties and dimensional stability.Type: ApplicationFiled: September 10, 2003Publication date: April 28, 2005Inventors: Kiyonari Hashidzume, Nobuaki Kido, Shunichi Matsumura
-
Patent number: 6881453Abstract: A film which is a single polymer film and has a smaller phase difference as the wavelength becomes shorter. This film is made from an olefin-based polymer which has an alicyclic group in the side chain, such as hydrogenated polystyrene, the amount of the alicyclic group in the side chain being 60 to 90 wt % based on the whole polymer, and satisfies the following expression: R(450)/R(550)<1 wherein R(450) and R(550) are phase differences on the film plane at a wavelength of 450 nm and a wavelength of 550 nm, respectively.Type: GrantFiled: April 23, 2001Date of Patent: April 19, 2005Assignees: Teijin Limited, Bayer AGInventors: Nobuaki Kido, Shunichi Matsumura, Kaoru Iwata, Takashi Kushida, Akihiko Uchiyama, Michio Yamaura, Takeshi Sasaki, Kiyonari Hashidzume