Patents Assigned to Osaka University
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Patent number: 12365950Abstract: A method for detecting conjunctival diseases such as conjunctival MALT lymphoma, and an aging biomarker that serves as an indicator of the aging state of a subject are provided. The method for detecting conjunctival diseases comprises a step of comparing a microbial community structure of a microbiota in an ocular surface tissue specimen sampled from a healthy person with a microbial community structure of a microbiota in an ocular surface tissue specimen sampled from a subject to determine that the ocular surface tissue specimen of the subject has an indication of the conjunctival diseases. The aging biomarker a comprises bacterial species which belongs to the Corynebacteriaceae family or the Propionibacteriales family in an ocular surface tissue.Type: GrantFiled: June 28, 2019Date of Patent: July 22, 2025Assignees: Osaka University, Otsuka Pharmaceutical Co., Ltd.Inventors: Kohji Nishida, Noriyasu Hashida, Tetsuya Iida, Shota Nakamura, Daisuke Motooka, Kazunobu Asao, Satoru Ando
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Patent number: 12344841Abstract: A method of reducing the level of a transcription product in a cell comprising contacting with the cell a composition comprising a double-stranded nucleic acid complex comprising a first nucleic acid strand annealed to a second nucleic acid strand, wherein: (i) the first nucleic acid strand hybridizes to the transcription product and comprises (a) a region consisting of at least 4 consecutive nucleotides that are recognized by RNase H when the strand is hybridized to the transcription product, (b) one or more nucleotide analogs located on 5? terminal side of the region, (c) one or more nucleotide analogs located on 3? terminal side of the region and (d) a total number of nucleotides and nucleotide analogs ranging from 8 to 35 nucleotides and (ii) the second nucleic acid strand comprises (a) nucleotides and optionally nucleotide analogs and (b) at least 4 consecutive RNA nucleotides.Type: GrantFiled: May 27, 2021Date of Patent: July 1, 2025Assignees: National University Corporation Tokyo Medical and Dental University, Osaka UniversityInventors: Takanori Yokota, Kazutaka Nishina, Satoshi Obika, Hidehiro Mizusawa
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Patent number: 12331062Abstract: Provided are a compound having an excellent semiconductor property and a method for producing the compound, an intermediate of the compound and a method for producing the intermediate, and an organic semiconductor material and an organic semiconductor device each obtained with use of the organic semiconductor material. A compound represented by general formula (2): where: A1 and A2 are CM1 or N, and M1 is H or the like; J1 and J2 are each independently a skeleton giving an electron donating property or an electron accepting property; and X1 and X2 are where: M2 to M4 are H or the like, and M3 and M4 may be bonded to each other to form a ring.Type: GrantFiled: October 25, 2019Date of Patent: June 17, 2025Assignees: Osaka University, ISHIHARA SANGYO KAISHA, LTD.Inventors: Yutaka Ie, Takuji Seo, Shreyam Chatterjee, Taichi Moriyama, Syun Kudo
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Publication number: 20250179428Abstract: The present invention relates to a method for inducing the differentiation of corneal epithelial cells from pluripotent stem cells. More specifically, the present invention relates to a method for autonomously differentiating pluripotent stem cells, such as human iPS cells, into ectodermal cell lineage in a serum-free medium without using feeder cells and inducing the differentiation of the resultant ocular surface ectodermal lineage cells into corneal epithelial cells.Type: ApplicationFiled: February 5, 2025Publication date: June 5, 2025Applicant: Osaka UniversityInventors: Kohji NISHIDA, Ryuhei HAYASHI, Yuki ISHIKAWA
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Publication number: 20250179109Abstract: A 5?-modified nucleoside and a nucleotide using the same are disclosed. The nucleoside of the present invention is a compound represented by a formula (I) below or a salt thereof. The nucleoside of the present invention has a suitable double-strand forming ability for a target RNA and an excellent nuclease-resistant ability and can be produced with high efficiency without the need for an operation for separating diastereomers in the pathway for the synthesis thereof. The nucleoside of the present invention is usable as an alternative to phosphorothioate-modified nucleic acids, which have a risk of, for example, accumulation in a specific organ, and also has high industrial productivity.Type: ApplicationFiled: February 24, 2023Publication date: June 5, 2025Applicants: Osaka University, Japan as Represented by Director General of National Institute of Health SciencesInventors: Satoshi OBIKA, Takao YAMAGUCHI, Shiori SAKAUE, Takao INOUE, Tokuyuki YOSHIDA
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Patent number: 12312603Abstract: Provided are a cell population substantially consisting of mammalian cells that are positive for cell surface markers CD31 and CD200 and negative for CD45; a cell population substantially consisting of mammalian cells that are positive for cell surface markers CD31, CD157 and CD200 and negative for CD45; a mammalian vascular endothelial stem cell that is positive for the cell surface marker CD31, positive for at least one of CD157 and CD200, and negative for CD45; and a medicament for vascular regeneration, comprising any of the cell populations or the vascular endothelial stem cells as an active ingredient.Type: GrantFiled: January 26, 2024Date of Patent: May 27, 2025Assignee: Osaka UniversityInventors: Nobuyuki Takakura, Hisamichi Naito, Taku Wakabayashi
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Patent number: 12311461Abstract: A friction stir welding tool and a friction stir welding method that can increase the amount of heat generation, while reducing the amount of escaping heat are provided. The friction stir welding tool (1) has a shoulder portion (7) and a probe portion (5) provided on a bottom surface of the shoulder portion (7). The base material of the friction stir welding tool (1) is a ceramic material whose main phase is silicon nitride or sialon. The shoulder portion (7) has a diameter of 35 mm or greater.Type: GrantFiled: April 7, 2022Date of Patent: May 27, 2025Assignees: NTK CUTTING TOOLS CO., LTD., Osaka UniversityInventors: Yuki Takeuchi, Jun Moteki, Hiroki Takeuchi, Yusuke Katsu, Yasushi Hara, Hidetoshi Fujii, Yoshiaki Morisada
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Publication number: 20250154461Abstract: Provided is a method for producing regulatory T cells, comprising the step of culturing mammalian-derived peripheral T cells in a medium comprising TGF? and IL-2 in the presence of CD3 stimulation and in the absence of CD28 stimulation. The medium may further comprise ascorbic acid. The method may further comprise the step of culturing the obtained cell culture in a medium comprising IL-2.Type: ApplicationFiled: January 17, 2025Publication date: May 15, 2025Applicant: Osaka UniversityInventors: Shimon Sakaguchi, Norihisa Mikami
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Publication number: 20250136613Abstract: A compound or a pharmaceutically acceptable salt thereof according to the present invention has a structure represented by Formula (I) and can form a ligand for a drug delivery system formulation. The drug delivery system formulation according to the present invention can improve, for example, an ability to make a delivery to the skeletal muscle.Type: ApplicationFiled: November 4, 2022Publication date: May 1, 2025Applicant: Osaka UniversityInventors: Satoshi OBIKA, Osamu NAKAGAWA, Ryohei YAMAJI, Haruhiko KAMADA, Taisuke NAKAYAMA
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Publication number: 20250136674Abstract: Provided are: an antibody which specifically binds to and neutralizes USAG-1 or an antigen-binding fragment thereof; and a pharmaceutical composition containing the antibody or the antigen-binding fragment.Type: ApplicationFiled: February 3, 2022Publication date: May 1, 2025Applicants: Kyoto University, University of Fukui, Aichi Prefecture, Osaka UniversityInventors: Katsu TAKAHASHI, Manabu SUGAI, Yoshihito TOKITA, Junichi TAKAGI, Emiko MIHARA
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Patent number: 12286573Abstract: To provide an adhesive sheet, the sheet increasing manufacturing efficiency of products including an adhesive agent layer, while using the adhesive agent layer to which an electro-conductive organic polymer compound is added. An adhesive sheet for use in applying a wiring board to a surface onto which the wiring board is to be applied, the adhesive sheet is constituted by an adhesive agent layer including an electro-conductive organic polymer compound and an adhesive material; a first releasing sheet provided on front surface of the adhesive agent layer; and a second releasing sheet provided on a back surface corresponding to a back surface of the front surface in the adhesive agent layer.Type: GrantFiled: March 12, 2020Date of Patent: April 29, 2025Assignees: Mektec Corporation, Osaka UniversityInventors: Masayuki Iwase, Teppei Araki, Tsuyoshi Sekitani, Shusuke Yoshimoto
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Patent number: 12272459Abstract: A medical diagnostic apparatus includes a receiver circuit that receives three-dimensional data of a subject's eye, and a processor configured to separate portions of the three-dimensional data into separate segments, perform processing differently on each of the separate segments, and combine the separately processed segments to produce a segmented three-dimensional data set. The processor is further configured to generate at least one diagnostic metric from the segmented three-dimensional data set, and the processor is further configured to evaluate a pathological condition based on the at least one diagnostic metric. Related methods and computer readable media are also disclosed.Type: GrantFiled: October 5, 2021Date of Patent: April 8, 2025Assignees: Topcon Corporation, Osaka UniversityInventors: Kohji Nishida, Atsuya Miki, Kazuichi Maruyama, Ryo Kawasaki, Song Mei, Zaixing Mao, Zhenguo Wang, Kinpui Chan, Xin Sui
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Patent number: 12259311Abstract: The present disclosure provides methods and systems for ghost cytometry (GC), which may be used to produce an image of an object without using a spatially resolving detector. This may be used to perform image-free ultrafast fluorescence “imaging” cytometry, based on, for example, a single pixel detector. Spatial information obtained from the motion of cells relative to a patterned optical structure may be compressively converted into signals that arrive sequentially at a single pixel detector. Combinatorial use of the temporal waveform with the intensity distribution of the random or pseudo-random pattern may permit computational reconstruction of cell morphology. Machine learning methods may be applied directly to the compressed waveforms without image reconstruction to enable efficient image-free morphology-based cytometry.Type: GrantFiled: August 25, 2023Date of Patent: March 25, 2025Assignees: ThinkCyte K.K., University of Tokyo, Osaka UniversityInventors: Sadao Ota, Ryoichi Horisaki, Yoko Kawamura, Masashi Ugawa, Issei Sato
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Patent number: 12247219Abstract: The present invention relates to a method for inducing the differentiation of corneal epithelial cells from pluripotent stem cells. More specifically, the present invention relates to a method for autonomously differentiating pluripotent stem cells, such as human iPS cells, into ectodermal cell lineage in a serum-free medium without using feeder cells and inducing the differentiation of the resultant ocular surface ectodermal lineage cells into corneal epithelial cells.Type: GrantFiled: June 15, 2021Date of Patent: March 11, 2025Assignee: Osaka UniversityInventors: Kohji Nishida, Ryuhei Hayashi, Yuki Ishikawa
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Patent number: 12230023Abstract: An analysis device includes an analysis unit configured to receive scattered light, transmitted light, fluorescence, or electromagnetic waves from an observed object located in a light irradiation region light-irradiated from a light source and analyze the observed object on the basis of a signal extracted on the basis of a time axis of an electrical signal output from a light-receiving unit configured to convert the received light or electromagnetic waves into the electrical signal.Type: GrantFiled: November 16, 2023Date of Patent: February 18, 2025Assignees: The University of Tokyo, Osaka UniversityInventors: Sadao Ota, Issei Sato, Katsuhito Fujiu, Satoko Yamaguchi, Kayo Waki, Yoko Itahashi, Ryoichi Horisaki
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Patent number: 12227743Abstract: Provided is a pharmaceutical composition for the treatment of a disease associated with upregulated periostin expression or periostin splice variant switching, which pharmaceutical composition comprises, as an active ingredient, a nucleic acid capable of inducing skipping of exon 17 in periostin gene transcription and/or a nucleic acid capable of inducing skipping of exon 21 in periostin gene transcription. The pharmaceutical composition of the present invention can treat a disease associated with upregulated periostin expression or periostin splice variant switching, while preventing complete inhibition of the functions of periostin.Type: GrantFiled: January 23, 2019Date of Patent: February 18, 2025Assignee: Osaka UniversityInventors: Fumihiro Sanada, Yoshiaki Taniyama, Ryuichi Morishita
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Patent number: 12202218Abstract: The present invention provides a new method for producing a lens to be fitted to an eye in a simple manner at a low cost. In order to achieve the aforementioned object, the present invention provides a method for producing a lens to be fitted to an eye, including the step of: hydrophilizing a surface of a polymer lens by reacting with a compound radical, wherein the compound radical is a radical containing one element selected from the group consisting of Group 15 elements and Group 16 elements, and a Group 17 element.Type: GrantFiled: June 20, 2019Date of Patent: January 21, 2025Assignee: Osaka UniversityInventors: Kohji Nishida, Koichi Baba, Shizuka Koh, Kei Ohkubo, Haruyasu Asahara, Tsuyoshi Inoue, Hiroshi Uyama, Taka-Aki Asoh
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Patent number: 12187691Abstract: Provided is a catalyst for amide compound hydrogenation characterized in that rhodium and molybdenum are supported on hydroxyapatite, the catalyst for amide compound hydrogenation providing a catalyst that can promote a reduction reaction that converts an amide compound into an amine compound, can be used under moderate conditions, and has durability that allows repeated use thereof while retaining high activity. Also provided is a method for producing an amine compound, the method being characterized by including bringing an amide compound into contact with the catalyst for amide compound hydrogenation to cause hydrogenation, thereby producing an amine compound.Type: GrantFiled: February 20, 2020Date of Patent: January 7, 2025Assignees: Osaka University, N.E. Chemcat CorporationInventors: Kiyotomi Kaneda, Takato Mitsudome, Miho Kimura, Yukio Takagi, Yosuke Imanaka, Hiroyasu Suzuka, Tatsuya Kojima
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Patent number: 12186456Abstract: To provide an artificial bone having a porous structure with an improved affinity to osteogenic cells, an artificial bone (1) includes: a base material (2) containing porous ceramics provided with mutually interconnected multiple pores (6); a carbonaceous thin film (10) formed on an outer surface of the base material and wall surfaces (7) of the pores; and functional groups (13) including amino groups (12) provided on a surface and in an interior of the carbonaceous thin film.Type: GrantFiled: August 5, 2019Date of Patent: January 7, 2025Assignees: Osaka University, Aimedic MMT Co., Ltd.Inventors: Satoshi Hamaguchi, Tomoko Deguchi, Satoshi Sugimoto, Takashi Kaito, Hideki Yoshikawa, Chieko Asamori
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Patent number: 12139406Abstract: The present invention provides a method for producing a substance with a modified carbon allotrope surface that can suppress or prevent uneven distribution, uneven orientation, and the like of a structural analysis target substance in a structural analysis by cryo-electron microscopy. A method for producing a substance with a modified carbon allotrope surface of the present invention includes: the step of surface-treating by reacting a carbon allotrope surface with a halogen oxide radical, wherein the carbon allotrope surface is modified by the surface-treating.Type: GrantFiled: March 27, 2020Date of Patent: November 12, 2024Assignee: Osaka UniversityInventors: Tsuyoshi Inoue, Haruyasu Asahara, Kei Ohkubo, Kenji Iwasaki, Naoyuki Miyazaki, Mika Hirose, Atsushi Nakagawa, Junichi Takagi, Takefumi Doi, Hiroaki Adachi