Patents by Inventor Takafumi Nakayama
Takafumi Nakayama 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: 20240084062Abstract: Provided are a composition containing a component A and a component B, a cured substance or a molded body thereof, an optical member and a lens. Component A: A compound having a nitrogen-containing fused aromatic ring as a partial structure Component B: A compound represented by any of General Formulae (B1) to (B5) In General Formulae (B1) to (B5), Ar101 to Ar104 represent an aryl group or a heteroaryl group, X1 represents a monovalent substituent, Y1 represents a hydrogen atom or a monovalent substituent, and adjacent two of Ar101 to Ar104, X1, and Y1 may be bonded to each other to form a ring, where none of the monovalent substituents employed as X1 or Y1 is an aryl group or a heteroaryl group.Type: ApplicationFiled: October 25, 2023Publication date: March 14, 2024Applicant: FUJIFILM CorporationInventors: Takafumi NAKAYAMA, Naoyuki Morooka
-
Patent number: 11873426Abstract: The present invention provides a curable composition containing a compound represented by General Formula A and a compound represented by General Formula B. ArL-Sp-Pol)n??(General Formula A) In General Formula A, Ar represents an n-valent group containing a nitrogen-containing fused aromatic ring as a partial structure; L represents a linking group such as —O— and —C(?O)O—; Sp represents a single bond or a divalent linking group; Pol represents a hydrogen atom or a polymerizable group; n represents 1 or 2; and the compound represented by General Formula A has at least one polymerizable group. In General Formula B, R?, R?, and R?? are each independently a hydrogen atom or a substituent; R? and R? or R? and R?? may be bonded to each other to form a ring that may have a substituent; and W is a hydrogen atom or a substituent.Type: GrantFiled: December 23, 2020Date of Patent: January 16, 2024Assignee: FUJIFILM CorporationInventors: Takafumi Nakayama, Naoyuki Morooka
-
Publication number: 20230322985Abstract: Provided are a curable resin composition containing a compound represented by General Formula (1) and a component (B); and a cemented lens using the composition. Component (B): a polymer including a structural unit (bi) having an aromatic ring and a structural unit (b2) having a hydrogen bonding group, in which a proportion of the structural unit (b1) in all structural units constituting the polymer is 10% by mass or more and a proportion of the structural unit (b2) in all structural units constituting the polymer is 3% by mass or more, where the structural unit (bi) has no hydrogen bonding group. Pol1-Spa-L1-Ar-L2-Spb-Pol2??General Formula (1) Ar represents an aromatic ring group represented by a specific formula, L1, L2, Spa, and Spb represent a single bond or a specific group, and Pol1 and Pol2 represent a polymerizable group.Type: ApplicationFiled: June 7, 2023Publication date: October 12, 2023Applicant: FUJIFILM CorporationInventor: Takafumi NAKAYAMA
-
Publication number: 20230265058Abstract: Provided are a compound represented by the following General Formula (A1-1), a method for producing the same, and the use of the compound: wherein R5 and R6 represent a hydrogen atom or an alkyl group, L1 and L2 represent an alkylene group having 1 to 6 carbon atoms, Spa and Spb represent a single bond or a divalent linking group, R11 and R21 represent a substituent, and v1 and w1 are an integer of 0 to 4. Further provided that a structure represented by (R11)v1-benzen ring/cyclopentadiene skeleton/naphthalene ring-(R21)w1 is not line-symmetrical, where “/” represents that two rings described on left and right sides of the structure are fused.Type: ApplicationFiled: February 8, 2023Publication date: August 24, 2023Applicant: FUJIFILM CorporationInventors: Takafumi NAKAYAMA, Kosuke CHIBA, Naoyuki MOROOKA
-
Publication number: 20230212136Abstract: Provided are a curable resin composition including a near-ultraviolet light-absorbing organic compound, indium tin oxide particles, and a polymer having a constitutional unit represented by General Formula (P) and having an acidic group at one terminal, in which the near-ultraviolet light-absorbing organic compound is a compound that has a maximal value at 300 to 400 nm in an absorption spectrum in a wavelength region of 300 to 800 nm and does not substantially absorb light at a wavelength of 410 to 800 nm; a cured product formed of the curable resin composition; a diffractive optical element; and a multilayer diffractive optical element. ArP represents an aryl group and LP and RP1 represent a specific group.Type: ApplicationFiled: December 29, 2022Publication date: July 6, 2023Applicant: FUJIFILM CorporationInventors: Kosuke CHIBA, Naozumi SHIRAIWA, Takafumi NAKAYAMA, Naoyuki MOROOKA
-
Publication number: 20230183406Abstract: Provided are the following compound represented by General Formula (A) or (B), a curable resin composition including the compound, a cured product thereof, an optical member, and a lens: A ring Ar1 and a ring Ar2 represent an aromatic ring represented by a specific formula or a fused ring thereof, R1 and R2 represent a specific substituent, and v and w are a specific integer. R3 and R4 represent a hydrogen atom or a monovalent substituent, L1 and L2 represent an alkylene group having 1 to 6 carbon atoms, and Spa to Spd represent a single bond or a divalent linking group. Pol1 and Pol2 represent a hydrogen atom or a polymerizable group, in which at least one of Pol1 or Pol2 is a polymerizable group. Further, in the formulae, a structure represented by (R1)v—Ar1/cyclopentadiene skeleton/Ar2—(R2)w is not line-symmetrical.Type: ApplicationFiled: February 8, 2023Publication date: June 15, 2023Applicant: FUJIFILM CorporationInventors: Takafumi NAKAYAMA, Kosuke Chiba, Naoyuki Morooka
-
Patent number: 11518916Abstract: According to the present invention, a lens adhesive including a compound represented by General Formula 1 is provided. Pol1-Sp1-L1-Ar-L2-Sp2-Pol2??(General Formula 1) In the formula, Ar is an aromatic ring group represented by General Formula 2-2 and the like. In the formula, Z1 and Z2 each represent a hydrogen atom, a methyl group, and the like; A1 and A2 each represent —S— and the like; X represents C(Rz)2 and the like (where Rz is a substituent, and two Rz's may form a ring); L1 and L2 each represent a single bond, —O—, —OC(?O)—, —OC(?O)O—, —OC(?O)NH—, and the like; Sp1 and Sp2 each represent a single bond or a linking group such as a linear alkylene group; Pol1 and Pol2 each represent a hydrogen atom or a polymerizable group; and a compound represented by General Formula 1 has at least one polymerizable group. Using the lens adhesive, it is possible to provide a cemented lens that is unlikely to deteriorate due to light, and an imaging module having high durability.Type: GrantFiled: June 25, 2020Date of Patent: December 6, 2022Assignee: FUJIFILM CorporationInventors: Takafumi Nakayama, Naozumi Shiraiwa, Naoyuki Morooka
-
Publication number: 20220315686Abstract: Provided is a curable composition containing a polymerizable compound represented by General Formula (A), an acylphosphine oxide photopolymerization initiator, and an amine compound. ArL-Sp-Pol)n??Genera Formula (A) Ar represents an n-valent group containing a nitrogen-containing fused aromatic ring satisfying all items (i) to (iii), as a partial structure. (i) The nitrogen-containing fused aromatic ring has a fused ring structure in which two or more 6-membered rings are fused. (ii) The nitrogen-containing fused aromatic ring has at least one nitrogen atom as a ring-constituting atom. (iii) All ring-constituting atoms have p-orbitals, and all the p-orbitals contribute to aromaticity. L and Sp each independently represent a single bond or a divalent linking group, Pol represents a hydrogen atom or a polymerizable group, and n represents 1 or 2. The polymerizable compound represented by General Formula (A) contains at least one polymerizable group.Type: ApplicationFiled: June 14, 2022Publication date: October 6, 2022Applicant: FUJIFILM CorporationInventors: Takafumi Nakayama, Naoyuki Morooka
-
Patent number: 11377545Abstract: The present invention provides a curable resin composition including a bifunctional or more (meth)acrylate compound, indium tin oxide particles, and an acidic polymer, in which the acidic polymer has a moiety including a carboxyl group at a polymer skeleton of a (meth)acrylate compound and at any one of terminals of the polymer skeleton of a (meth)acrylate compound, and an acid value of the acidic polymer is 2.0 mgKOH/g or more and less than 100 mgKOH/g. The curable resin composition of the present invention provides a transparent cured product, hardly causes bubbles to be mixed in a case of applying the curable resin composition to a mold so as to form a lattice-shaped cured product, and also has a good peeled surface shape from the mold after curing. The present invention also provides a diffractive optical element including a surface having a diffraction grating shape and formed of the cured product of the curable resin composition.Type: GrantFiled: September 14, 2020Date of Patent: July 5, 2022Assignee: FUJIFILM CorporationInventors: Takayasu Nagai, Naozumi Shiraiwa, Takafumi Nakayama, Naoyuki Morooka, Masahiro Takata, Masanori Fujiwara
-
Patent number: 11370744Abstract: According to the present invention, as a monomer which is unlikely to be crystallized in a curable composition for manufacturing an optical member and which enables manufacture of a cured product having a high level of moisture-heat resistance, a compound represented by General Formula (A) is provided.Type: GrantFiled: February 6, 2020Date of Patent: June 28, 2022Assignee: FUJIFILM CorporationInventors: Takafumi Nakayama, Naoyuki Morooka
-
Publication number: 20220169766Abstract: A lens having high quality even after long-term storage can be manufactured using a curable composition containing a compound represented by General Formula A, a compound represented by General Formula B, and a polymerization initiator, in which a ratio of a substance amount of the compound represented by General Formula B to a substance amount of the compound represented by General Formula A is 1 to 25 mol %. In the Formulas, each portion surrounded by a broken line of Ar11, Ar12, and Ar13 represents that each of the portions may form a fused ring; L1 and L2 each represent a single bond, —O—, or the like; Sp1 and Sp2 each represent a single bond or a divalent linking group; Pol1 and Pol2 each represent a polymerizable group; R3 to R6 each represent a substituent; and q, r, v, and w are each an integer of 0 to 4.Type: ApplicationFiled: February 15, 2022Publication date: June 2, 2022Applicant: FUJIFILM CorporationInventors: Takafumi Nakayama, Naoyuki Morooka
-
Publication number: 20210403438Abstract: A curable composition containing a compound represented by General Formula A and a salt of an acidic phosphoric acid ester is provided as a curable composition for forming a cured product that has a small Abbe number and a large partial dispersion ratio and has excellent moldability. In General Formula A, Ar represents an n-valent group containing a nitrogen-containing aromatic ring as a partial structure, L represents a linking group such as —O— and —C(?O)O—, Sp represents a single bond or a divalent linking group, Pol represents a hydrogen atom or a polymerizable group, and n represents 1 or 2; and the compound represented by General Formula A has at least one polymerizable group.Type: ApplicationFiled: September 2, 2021Publication date: December 30, 2021Applicant: FUJIFILM CorporationInventors: Takafumi NAKAYAMA, Naoyuki MOROOKA
-
Publication number: 20210108012Abstract: The present invention provides a curable composition containing a compound represented by General Formula A and a compound represented by General Formula B. Ar?L-Sp-Pol)n??(General Formula A) In General Formula A, Ar represents an n-valent group containing a nitrogen-containing fused aromatic ring as a partial structure; L represents a linking group such as —O— and —C(?O)O—; Sp represents a single bond or a divalent linking group; Pol represents a hydrogen atom or a polymerizable group; n represents 1 or 2; and the compound represented by General Formula A has at least one polymerizable group. In General Formula B, R?, R?, and R?? are each independently a hydrogen atom or a substituent; R? and R? or R? and R?? may be bonded to each other to form a ring that may have a substituent; and W is a hydrogen atom or a substituent.Type: ApplicationFiled: December 23, 2020Publication date: April 15, 2021Applicant: FUJIFILM CorporationInventors: Takafumi NAKAYAMA, Naoyuki Morooka
-
Patent number: 10954183Abstract: An object of the present invention is to develop a compound and a curable composition which are capable of providing an optical member having favorable refractive index characteristics and a high degree of moisture-heat resistance. The present invention relates to a compound represented by General Formula (1), a curable composition containing the compound, a semi-cured product, a cured product, an optical member, and a lens. At least one of R1, . . . , or R5 represents an aryl group or a heteroaryl group which is substituted by a substituent containing a (meth)acryloyloxy group, and at least one of R6, . . . , or R10 represents an aryl group or a heteroaryl group.Type: GrantFiled: December 16, 2019Date of Patent: March 23, 2021Assignee: FUJIFILM CorporationInventor: Takafumi Nakayama
-
Patent number: 10899882Abstract: An object of the present invention is to provide a phase difference film that can exhibit sufficient reciprocal wavelength dispersibility. The present invention includes a copolymer containing at least one selected from a unit represented by Formula (1) and a unit represented by Formula (2), and a unit represented by Formula (3), in which 20 nm<Re (548)<300 nm, 0.5<Re (446)/Re (548)<1.0, and 1.0<Re (629)/Re (548)<2.0. Here, Re (446), Re (548), and Re (629) represent in-plane retardations at wavelengths of 446 nm, 548 nm, and 629 nm, respectively.Type: GrantFiled: December 18, 2019Date of Patent: January 26, 2021Assignee: FUJIFILM CorporationInventors: Shigeki Uehira, Naoyuki Morooka, Takafumi Nakayama
-
Publication number: 20200407546Abstract: The present invention provides a curable resin composition including a bifunctional or more (meth)acrylate compound, indium tin oxide particles, and an acidic polymer, in which the acidic polymer has a moiety including a carboxyl group at a polymer skeleton of a (meth)acrylate compound and at any one of terminals of the polymer skeleton of a (meth)acrylate compound, and an acid value of the acidic polymer is 2.0 mgKOH/g or more and less than 100 mgKOH/g. The curable resin composition of the present invention provides a transparent cured product, hardly causes bubbles to be mixed in a case of applying the curable resin composition to a mold so as to form a lattice-shaped cured product, and also has a good peeled surface shape from the mold after curing. The present invention also provides a diffractive optical element including a surface having a diffraction grating shape and formed of the cured product of the curable resin composition.Type: ApplicationFiled: September 14, 2020Publication date: December 31, 2020Applicant: FUJIFILM CorporationInventors: Takayasu NAGAI, Naozumi SHIRAIWA, Takafumi NAKAYAMA, Naoyuki MOROOKA, Masahiro TAKATA, Masanori FUJIWARA
-
Publication number: 20200325367Abstract: According to the present invention, a lens adhesive including a compound represented by General Formula 1 is provided. Pol1-Sp1-L1-Ar-L2-Sp2-Pol2??(General Formula 1) In the formula, Ar is an aromatic ring group represented by General Formula 2-2 and the like. In the formula, Z1 and Z2 each represent a hydrogen atom, a methyl group, and the like; A1 and A2 each represent —S— and the like; X represents C(Rz)2 and the like (where Rz is a substituent, and two Rz's may form a ring); L1 and L2 each represent a single bond, —O—, —OC(?O)—, —OC(?O)O—, —OC(?O)NH—, and the like; Sp1 and Sp2 each represent a single bond or a linking group such as a linear alkylene group; Pol1 and Pol2 each represent a hydrogen atom or a polymerizable group; and a compound represented by General Formula 1 has at least one polymerizable group. Using the lens adhesive, it is possible to provide a cemented lens that is unlikely to deteriorate due to light, and an imaging module having high durability.Type: ApplicationFiled: June 25, 2020Publication date: October 15, 2020Applicant: FUJIFILM CorporationInventors: Takafumi NAKAYAMA, Naozumi SHIRAIWA, Naoyuki MOROOKA
-
Publication number: 20200181061Abstract: According to the present invention, as a monomer which is unlikely to be crystallized in a curable composition for manufacturing an optical member and which enables manufacture of a cured product having a high level of moisture-heat resistance, a compound represented by General Formula (A) is provided.Type: ApplicationFiled: February 6, 2020Publication date: June 11, 2020Applicant: FUJIFILM CorporationInventors: Takafumi NAKAYAMA, Naoyuki MOROOKA
-
Publication number: 20200131309Abstract: An object of the present invention is to provide a phase difference film that can exhibit sufficient reciprocal wavelength dispersibility. The present invention includes a copolymer containing at least one selected from a unit represented by Formula (1) and a unit represented by Formula (2), and a unit represented by Formula (3), in which 20 nm<Re (548)<300 nm, 0.5<Re (446)/Re (548)<1.0, and 1.0<Re (629)/Re (548)<2.0. Here, Re (446), Re (548), and Re (629) represent in-plane retardations at wavelengths of 446 nm, 548 nm, and 629 nm, respectively.Type: ApplicationFiled: December 18, 2019Publication date: April 30, 2020Applicant: FUJIFILM CorporationInventors: Shigeki UEHIRA, Naoyuki MOROOKA, Takafumi NAKAYAMA
-
Publication number: 20200115316Abstract: An object of the present invention is to develop a compound and a curable composition which are capable of providing an optical member having favorable refractive index characteristics and a high degree of moisture-heat resistance. The present invention relates to a compound represented by General Formula (1), a curable composition containing the compound, a semi-cured product, a cured product, an optical member, and a lens. At least one of R1, . . . , or R5 represents an aryl group or a heteroaryl group which is substituted by a substituent containing a (meth)acryloyloxy group, and at least one of R6, . . . , or R10 represents an aryl group or a heteroaryl group.Type: ApplicationFiled: December 16, 2019Publication date: April 16, 2020Applicant: FUJIFILM CorporationInventor: Takafumi NAKAYAMA