baber/WOPTO huggingface dataset:
Patent JP-WO2017217286-A1 (JP)
Title: 通話機器およびケアサポートシステム
IPC: H04Q9/00
Filed: 2017-06-07
Abstract: 通話機器（１）において、音声通信部（４）は、マイク（２）にて入力された音声の情報を居室外の他の機器に送信する一方、スピーカー（３）での出力対象となる音声の情報を他の機器から受信する。操作部（５）は、音声通信部（４）を介して他の機器と音声通話を開始する指示を受け付ける。音量判断部（６）は、操作部（５）にて指示を受け付けたときにマイク（２）に入力される音の大きさを、居室内に設置される少なくとも１つの外部機器の動作によって発生する環境音の音量として判断する。外部機器制御部（９）は、音量判断部（６）にて環境音の音量が閾値よりも大きいと判断された場合のみ、環境音の音量が上記指示を受け付けたときの値よりも低下するように、少なくとも１つの外部機器の動作を制御する。
Patent JP-WO2018008642-A1 (JP)
Title: ケイ素化合物材料の製造方法およびケイ素化合物材料製造装置
IPC: C04B41/85
Filed: 2017-07-04
Abstract: ケイ素化合物材料の製造方法は、炭化ケイ素のプリフォームを反応炉に格納する工程と、反応炉にメチルトリクロロシランを含む原料ガスを供給し、プリフォームに炭化ケイ素を含浸する工程と、反応炉から排出されたガスの温度を所定の速度で制御して降下させ、ガスに連続的な熱履歴を与えることにより、ガスに由来する、液体または固体の副生成物の発生を低減する工程と、を含む。
Patent JP-WO2018030488-A1 (JP)
Title: Ｐｐｒモチーフを利用したｄｎａ結合性タンパク質およびその利用
IPC: C12P21/02
Filed: 2017-08-09
Abstract: PPRを利用したDNA結合性のタンパク質を汎用化、改良することを課題とする。以下の式1の構造を有するPPRモチーフを1個以上含むタンパク質であって、タンパク質に含まれる一のPPRモチーフ（Mn）が、1番A.A.、4番A.A.、および“ii”（-2）番A.A.の3つのアミノ酸を、対象DNA塩基または対象DNA塩基配列に対応した特定のアミノ酸の組み合わせで有するPPRモチーフであり、下記の(a)〜(h)からなる群より選択される少なくとも一つを満たす、タンパク質：(a) PPRモチーフ（Mn）の7番A.A.が、イソロイシン（I）である；(b) PPRモチーフ（Mn）の9番A.A.が、アラニン（A）である；(c) PPRモチーフ（Mn）の10番A.A.が、チロシン（Y）である；(d) PPRモチーフ（Mn）の18番A.A.が、リシン（K）、アルギニン （R）、またはヒスチジン（H）である；(e) PPRモチーフ（Mn）の20番A.A.が、グルタミン酸（E）、またはアスパラギン酸 （D）である；(f) PPRモチーフ（Mn）の29番A.A.が、グルタミン酸（E）、またはアスパラギン酸 （D）である；(g) PPRモチーフ（Mn）の31番A.A.が、イソロイシン（I）である；(h) PPRモチーフ（Mn）の32番A.A.が、リシン（K）、アルギニン （R）、またはヒスチジン（H）である。
Patent JP-WO2018047858-A1 (JP)
Title: 光る植物
IPC: A01G22/60
Filed: 2017-09-06
Abstract: 新たな光る植物を提供する。本発明の光る植物は、植物の表面に塗布された蛍光タンパク質を有する、または植物の内部に吸収させた蛍光タンパク質を有することを特徴とする。前記植物は、花が好ましい。
Patent JP-WO2018207603-A1 (JP)
Title: 頭部装着型照明装置
IPC: A61F9/02
Filed: 2018-04-23
Abstract: 装着者の耳に掛けられる眼鏡型の頭部装着型照明装置であって、耳に掛けられる一対のテンプル（２）の先端部同士を連結する支持部（３）の上方に配設され、対象物に対して光を照射する光源（１２）を備えるとともに、光源から射出された光を集光する集光レンズ（１３）を具備したる光源ユニット（１０）と、支持部（３）の下方で装着者の眼前に配設され、対象物からの反射光を透過して装着者に視認させる透過部材（３０）と、を有する。そして、光源ユニット（１０）は、集光レンズを２個以上備えており、２個以上の集光レンズは、各集光レンズの光軸が一点で収束するように光源ユニット（１０）に支持されており、光源ユニット（１０）は、支持部（３）に対して上下方向に回動可能に支持されていることを特徴とする。
Patent JP-WO2018123734-A1 (JP)
Title: 樹脂組成物、成形体、積層体、ガスバリア材、コーティング材及び接着剤
IPC: C08K3/01
Filed: 2017-12-19
Abstract: ポリエステルポリオールと、リチウム部分固定型スメクタイトとを含有する、樹脂組成物。
Patent JP-WO2018131606-A1 (JP)
Title: シリコンナノ粒子含有水素ポリシルセスキオキサン焼成物−金属酸化物複合体及びその製造方法、リチウムイオン電池用負極活物質、リチウムイオン電池用負極、及びリチウムイオン電池
IPC: H01M4/134
Filed: 2018-01-10
Abstract: シリコンナノ粒子含有水素ポリシルセスキオキサン焼成物及び金属酸化物から構成されるシリコンナノ粒子含有水素ポリシルセスキオキサン焼成物−金属酸化物複合体であって、前記シリコンナノ粒子含有水素ポリシルセスキオキサン焼成物は、１０ｎｍを超え５００ｎｍ未満の体積基準平均粒径を有するシリコンナノ粒子を５重量％から９５重量％と、前記シリコンナノ粒子を被覆し、前記シリコンナノ粒子の表面に化学的に結合する水素ポリシルセスキオキサン由来のケイ素酸化物構造とを含み、一般式 ＳｉＯｘＨｙ（０．０１＜ｘ＜１．３５、０＜ｙ＜０．３５）で表わされ、Ｓｉ−Ｈ結合を有する、シリコンナノ粒子含有水素ポリシルセスキオキサン焼成物であり、前記金属酸化物は、チタン、亜鉛、ジルコニウム、アルミニウム、及び鉄から選ばれる一種類以上の金属から構成される金属酸化物である、シリコンナノ粒子含有水素ポリシルセスキオキサン焼成物−金属酸化物複合体である。
Patent WO-2019150897-A1 (WO)
Title: Method for manufacturing stretchable film
Inventor: HIRATA SATOSHI
IPC: B29L11/00
Filed: 2019-01-10
Abstract: This method for manufacturing a stretchable film includes: respectively gripping left- and right-end portions of a long film with variable pitch-type left and right clips having pitches that are variable in the vertical direction, and changing the clip pitch of at least one among the left and right clips to obliquely stretch the film; releasing the film from the clips and cooling the film; and applying a longitudinal tension of 100-400 N/m to the film while heating the film to Tg-30°C to Tg-10°C using a contactless heating means.
Patent WO-2019181149-A1 (WO)
Inventor: KURODA YOHEI
IPC: A61B90/50
Filed: 2019-01-11
Abstract: A support unit for a medical camera head is described. The support unit is configured to rotate about an axis and including: an adapter configured to detachably mount a plurality of different medical scopes thereon; a light source supply system configured to supply light to the medical scope when mounted, the light source supply system being configured to pass through the axis; and an image sensor configured to capture an image from the medical scope, and wherein the axis is in the imaging direction of the image sensor.
Patent WO-2019167764-A1 (WO)
Inventor: HAYATA YUICHI
IPC: B32B27/00
Filed: 2019-02-20
Abstract: Provided are: a laminated body provided with a base material, a hard coat layer which is disposed on the base material and which has a film thickness of 0.5-50 μm, and an antireflection layer which has a thickness of 80-200 nm, which is disposed on the hard coat layer, and in which voids are included in a siloxane resin at a void ratio of 30-75%, wherein the indentation hardness from the antireflection layer side as measured according to ISO 14577-1 is 0.5-30 GPa; and use of the laminated body.
Patent WO-2019215993-A1 (WO)
Title: Robot control device, maintenance management method, and maintenance management program
Inventor: SHIRAKI TERUYUKI
IPC: B25J19/00
Filed: 2019-02-22
Abstract: The present invention accurately evaluates the degree of deterioration of a robot body. A robot control device 300 comprises: a drive control unit 309 that controls the operation of a robot body 200; a detection unit 310 that detects a signal used to analyze a feature value for quantitatively indicating the degree of deterioration of the robot body 200 which deteriorates over time in accordance with the operation of the robot body 200; a determination unit 304 that determines whether a data interval of the signal includes a constant speed interval at or above a fixed interval; a normalization unit 305 that normalizes the signal in a non-constant speed interval when the data interval of the signal does not include a constant speed interval at or above a fixed interval; an analysis unit 307 that analyzes the feature value on the basis of a signal feature value in the constant speed interval when the data interval of the signal includes a constant speed interval at or above a fixed interval, and analyzes the feature value on the basis of the normalized signal in the non-constant speed interval when the data interval of the signal does not include a constant speed interval at or above a fixed interval; and an estimation unit 308 that estimates the remaining service life of the robot body 200 on the basis of the feature value.
Patent WO-2019181373-A1 (WO)
Inventor: MUTO MIWA
IPC: H01L25/04
Filed: 2019-02-25
Abstract: The present invention reduces the characteristic impedance of a wire bonding structure which connects high frequency signals. According to the present invention, a first signal electrode 102 and a second signal electrode 106 are connected to each other by means of a first wire 109; a first ground electrode 103 and a fourth ground electrode 108 are connected to each other by means of a second wire 110; and a second ground electrode 104 and a third ground electrode 107 are connected to each other by means of a third wire 111. The second wire 110 and the third wire 111 overlap with each other only at one position above the first wire 109.
Patent WO-2019172058-A1 (WO)
Title: Method for producing polyurethane containing cellulose nanofibers
Inventor: TAGUCHI HIROMU
IPC: C08G18/08
Filed: 2019-02-28
Abstract: [Problem] The purpose of the present invention is to provide a method for producing a polyurethane containing cellulose nanofibers, which does not require crushing of cellulose in a polyol, use of water, and a surface treatment of cellulose for the purpose of enhancing the dispersibility in resins, and which is suitable as a starting material for artificial leathers, synthetic leathers, adhesives, painting materials, coating agents and the like.
[Solution] A method for producing a polyurethane containing cellulose nanofibers, which comprises the following steps (a)-(c).
(a) A step for obtaining a carbonic acid ester dispersion of cellulose nanofibers by dispersing cellulose nanofibers in a carbonic acid ester.
(b) A step for obtaining a cellulose nanofiber-containing polycarbonate diol dispersion by having the carbonic acid ester dispersion react with a diol compound.
(c) A step for obtaining a polyurethane containing cellulose nanofibers by having the polycarbonate diol dispersion react with an isocyanate compound.
Patent WO-2019182151-A1 (WO)
Title: Non-aqueous electrolyte secondary battery
Inventor: MINAMI TAKAMASA
IPC: H01M10/058
Filed: 2019-03-22
Abstract: Provided is a non-aqueous electrolyte secondary battery that can keep the electric potential of a metal layer in an outer packaging body high and suppress corrosion. In this non-aqueous electrolyte secondary battery, the average thickness t1 of a first section of an outer packaging body differs from the average thickness t2 of a second section of the outer packaging body, said first section covering a first side surface on which a positive electrode terminal and a negative electrode terminal of an electricity generation element are present, and said second section covering a second side surface that is in a location intersecting with the first side surface of the electricity generation element. When the electricity generation element is viewed in planar view from a layering direction, if the width of the negative electrode is greater than the width of the positive electrode in a first direction, in which the positive electrode terminal and the negative electrode terminal extend, and in a second direction orthogonally intersecting the first direction, then the relationship t1<t2 is satisfied. When the electricity generation element is viewed in planar view from the layering direction, if the width of the negative electrode is less than the width of the positive electrode in the second direction, then the relationship t1>t2 is satisfied.
Patent WO-2019189345-A1 (WO)
Inventor: HOSHINO WATARU
IPC: G02B5/30
Filed: 2019-03-27
Abstract: La présente invention aborde le problème de la fourniture d'un polariseur possédant un degré élevé d'alignement, ainsi que d'un dispositif d'affichage d'image comprenant le polariseur. Ce polariseur est formé à partir d'une composition de formation de polariseur qui contient un composé à cristaux liquides, une première substance dichroïque et une seconde substance dichroïque, le polariseur possédant une structure de réseau formée à partir de la première substance dichroïque et de la seconde substance dichroïque.
Patent WO-2019208123-A1 (WO)
Title: Pathogen distribution information provision system, pathogen distribution information provision server and pathogen distribution information provision method
Inventor: HARA KOHEI
IPC: G16H50/80
Filed: 2019-04-02
Abstract: An infection risk map provision system (10) comprises: a plurality of virus sensors (100) disposed in different locations to detect viruses in the air; a communication unit (302) collecting a plurality of detection information obtained by the plurality of virus sensors (100); and a control unit (301) providing, on the basis of the plurality of detection information, an infection risk map indicating the distribution of a plurality of infection risk information. The control unit (301) sets, on the basis of granularity information corresponding to each of the plurality of virus sensors (100), a display granularity for each of the plurality of infection risk information on the infection risk map to be displayed on an information terminal (400), and creates the infection risk map by superimposing each of the plurality of infection risk information on a map on the basis of the set display granularity and location information.
Patent WO-2019230377-A1 (WO)
Inventor: SEKINE KIYOTOSHI
IPC: G06T7/00
Filed: 2019-05-14
Abstract: 撮像部（１３０）は、ユーザ（Ｕ）に対向しうるように配置された反射部（１２０）によって反射された光の少なくとも一部を受光することにより、ユーザ（Ｕ）の画像を取得する。処理部は、ユーザ（Ｕ）の画像に基づいて認証処理を行なう。
Patent WO-2020234947-A1 (WO)
Inventor: OTSUDA Tomofumi
IPC: F04C25/02
Filed: 2019-05-17
Abstract: 真空ポンプ（１）では、ポンプロータ（３０）のロータ端面（３３）に形成したロータ端面凸部（３３ａ）は、狭い第１隙間Δ１で、ポンプ室内側端面（７０）に対峙する。ロータ端面凸部（３３ａ）は、ポンプロータ（３０）の外周縁の全周に亘って形成されており、気体シール部として機能し、ポンプ排気性能が確保される。ロータ端面凸部（３３ａ）によって取り囲まれているロータ端面凹部（３３ｂ）は、広い第２隙間Δ２で、ポンプ室内側端面（７０）に対峙する。ロータ端面凸部（３３ａ）は狭い幅で形成しておけばよく、その内側に広い面積のロータ端面凹部（３３ｂ）を形成できる。ポンプ室内側端面（７０）とロータ端面（３３）との間に形成される生成物に起因するポンプロータ（３０）の回転障害などを確実に解消できる。
Patent WO-2020021844-A1 (WO)
Inventor: TAMURA AKITO
IPC: H02K3/28
Filed: 2019-05-29
Abstract: This rotating electric machine stator is a stator (50) disposed coaxially with a rotatably supported rotor (40) and is provided with an annular stator core (52) and stator windings (51) having a plurality of phases, which are covered with an insulating film (82b). The stator windings have: magnet opposed portions (83) facing magnet portions (42) of the rotor in the radial direction of the rotating shaft of the rotating electric machine; and turn portions (84) that connect the magnet opposed portions having the same phase to each other outside the magnet opposed portions in the axial direction of the rotating shaft. At least one of the turn portions provided on both sides in the axial direction serves as heat-dissipation accelerating turn portions (841). The heat-dissipation accelerating turn portions are provided such that the heat-dissipation accelerating turn portions having different phases are partially overlapped with each other in the axial direction, and project in the radial direction with respect to the magnet opposed portions. The heat-dissipation accelerating turn portions having different phases, which are overlapped in the axial direction, are provided with: the most inner layer turn portion (841U) provided at the position nearest to the stator core in the axial direction; and outer layer turn portions (841V, 841W) provided at positions further from the stator core than the most inner layer turn portion in the axial direction. The projection amount of the most inner layer turn portion in the radial direction is different from the projection amounts of the outer layer turn portions in the radial direction.
Patent WO-2020250339-A1 (WO)
Inventor: HANA NORIHIKO
IPC: H02K15/02
Filed: 2019-06-12
Abstract: 回転電機の検査装置は、回転電機が有する回転子の検査すべき範囲である検査対象部に生じる損傷の位置、及び損傷の規模と、回転子の外面に設定される計測対象部に生じる変形量との間の関係を示す傾向情報を記憶した記憶部と、計測対象部に生じた変形量を計測する計測部と、傾向情報、及び計測部が計測した計測対象部の変形量を基に、計測対象部に生じた損傷の位置、及び規模を推定する損傷推定部と、を備える。
Patent WO-2020250351-A1 (WO)
Inventor: ADACHI TAKAYUKI
IPC: G06Q50/10
Filed: 2019-06-12
Abstract: The present invention makes it possible to perform analysis which is useful for understanding settings that require careful attention when executing a simulation and for understanding the movement of people and the conditions at a site.　An inter-measurement site information generation unit (130) generates, on the basis of received settings data for performing a simulation at a plurality of measurement sites, inter-measurement site information that is information relating to relationships between the measurement sites. A time series data estimation unit (140) estimates, for each of the plurality of measurement sites, time series measurement data for the measurement site, on the basis of the inter-measurement site information and received time series data that is time series measurement data at said measurement site. A difference analysis unit (150) analyzes information relating to the difference between the estimated measurement data and the time series data.
Patent WO-2020004294-A1 (WO)
Title: Cutter bit
Inventor: ISHIZUKA Takemi
IPC: E02D7/22
Filed: 2019-06-24
Abstract: Provided is a cutter bit for a casing tube that demonstrates good excavation performance and that can adapt to both left and right rotation. This cutter bit 1 for a casing tube comprises a mount unit 2 which comprises two members 2a, 2b facing each other over a prescribed gap, and an excavation unit 3 which is formed to be continuous with the mount unit and on which a plurality of carbide tips are disposed at the distal end with a prescribed gap therebetween, wherein the excavation unit 3 has a central portion 4 and first and second inclined portions 5, 6 that are inclined to the right and left with the central portion therebetween, the first inclined portion is formed to have a first length at a first inclined angle, the second inclined portion is formed to have a second length at a second inclined angle, the first inclined angle is the same as the second inclined angle, and the first length is shorter than the second length.
Patent WO-2021005634-A1 (WO)
Inventor: SAKAMAKI HIROSHI
IPC: G01S17/88
Filed: 2019-07-05
Abstract: La présente invention comprend : une unité de calcul de moment (101) qui utilise un signal de réception sur la base d'ondes qui ont été émises dans une zone d'observation et réfléchies par l'atmosphère dans la zone d'observation pour calculer la vitesse Doppler pour chaque cellule de portée obtenue par division de la zone d'observation dans une direction de portée et une direction d'azimut, une unité d'estimation de la direction du vent et de la vitesse du vent (102) qui estime une valeur de direction du vent et une valeur de vitesse du vent pour chaque cellule de portée sur la base des vitesses Doppler calculées par l'unité de calcul de moment (101), et une unité de détection de souffle (105) qui détecte une zone de souffle dans la zone d'observation sur la base des valeurs de direction du vent et des valeurs de vitesse du vent estimées par l'unité d'estimation de la direction du vent et de la vitesse du vent (102) pour chaque cellule de portée.
Patent WO-2020136960-A1 (WO)
Inventor: FUJIMOTO MASAHISA
IPC: H01M8/18
Filed: 2019-07-05
Abstract: This redox flow cell comprises: a first non-aqueous fluid (110) including a first non-aqueous solvent, a first electrode mediator (111), and metal ions; a first electrode (210); a second non-aqueous fluid (120) including a second non-aqueous solvent; a second electrode (220) being a counter electrode for the first electrode (210); and an isolating section (400) that has a plurality of holes and separates the first non-aqueous fluid (110) and the second non-aqueous fluid (120) from each other. The average hole diameter of the plurality of holes is greater than the size of the metal ions and is less than the size of the first electrode mediator (111) solvated by the first non-aqueous solvent.
Patent WO-2020026909-A1 (WO)
Inventor: HIRANO SEIICHI
IPC: C08L27/12
Filed: 2019-07-24
Abstract: L'invention concerne une composition comprenant : un fluoropolymère, au moins un composé d'acide carboxylique choisi dans le groupe constitué de composés d'acide dicarboxylique ayant une structure spécifique et des composés d'acide monocarboxylique ayant une structure spécifique; et au moins un agent de mélange de réticulation choisi dans le groupe constitué par les composés amines primaires, les composés aminés secondaires, les nitrures inorganiques, les composés organotiniques, des agents de réticulation de peroxyde, des agents de réticulation de polyol, des agents de réticulation de polyamine, des agents de réticulation d'oxazole, des agents de réticulation d'imidazole et des agents de réticulation de thiazole.
Patent WO-2020049944-A1 (WO)
Title: Manufacturing method and manufacturing device for glass articles
Inventor: TENYAMA Kazuyuki
IPC: C03B5/42
Filed: 2019-08-07
Abstract: This manufacturing method for glass articles is provided with: a charging step S1 for interposing flowable powder P and compressively deformable layered members 11a, 11b between a transport container 7 and refractory bricks 8a, 8b; and a preheating step S2 for heating the transport container 7 after the charging step S1. In the preheating step S2, the powder P is made to flow according to the thermal expansion of the transport container 7, and the layered members 11a, 11b are compressively deformed.
Patent WO-2020170476-A1 (WO)
Inventor: OOMIYA MICHINARI
IPC: A61Q19/00
Filed: 2019-08-13
Abstract: A hair treatment composition that comprises: 0.0005 wt% or more of a melanin synthesis-promoting peptide; 0.00069 wt% or more of a hair-regenerating peptide; 0.00001 wt% or more of an anti-aging peptide; 0.01525 wt% or more of a stem cell lysate; and 0.00563 wt% or more of an anti-inflammatory plant extract.
Patent WO-2020040266-A1 (WO)
Title: Terminal device, base station device, and communication method
Inventor: NAKASHIMA DAIICHIRO
IPC: H04W72/04
Filed: 2019-08-22
Abstract: The present invention addresses the problem of engaging in efficient broadband communication. The terminal device according to the present invention is a terminal device for receiving a physical downlink control channel (PDCCH), the device comprising: a wireless resource control layer processing unit that sets M control resource sets on the basis of radio resource control (RRC) signaling; and a reception unit that activates N control resource sets out of the M control resource sets, and monitors a plurality of PDCCH candidates within the N sets of activated control resource sets.
Patent WO-2020040309-A1 (WO)
Title: Method for producing silicon-containing oxide-coated aluminum nitride particles, and silicon-containing oxide-coated aluminum nitride particles
Inventor: OTSUKA YUKI
IPC: C01B21/072
Filed: 2019-08-23
Abstract: Provided are: a method for producing silicon-containing oxide-coated aluminum nitride particles, wherein the method can produce silicon-containing oxide-coated aluminum nitride particles which have improved moisture resistance and maintain the high thermal conductivity of aluminum nitride particles; a method for producing a heat-dissipating resin composition containing silicon-containing oxide-coated aluminum nitride particles; and silicon-containing oxide-coated aluminum nitride particles. The present invention pertains to a method for producing silicon-containing oxide-coated aluminum nitride particles each comprising an aluminum nitride particle and a silicon-containing oxide film covering the surface of the aluminum nitride particle, the method comprising: a first step for covering the surface of the aluminum nitride particles with an organosilicon compound containing a specific structure; and a second step for heating the organosilicon compound-covered aluminum nitride particle at a temperature of at least 300°C and less than 1000°C, wherein the carbon atom content in the silicon-containing oxide-coated aluminum nitride particle is less than 1000 ppm by mass.
Patent WO-2021038749-A1 (WO)
Title: Sensor system, image processing device, image processing method, and program
Inventor: KOIZUMI MAKOTO
IPC: H04N5/351
Filed: 2019-08-28
Abstract: Provided is a sensor system that comprises a sensor array and an event signal processing unit. The sensor array includes: a first sensor that detects fluctuations in the amount of light at a first pixel address at a first sensitivity; and a second sensor that detects fluctuations in the amount of light at a second pixel address that is adjacent to or overlaps the first pixel address at a second sensitivity that is lower than the first sensitivity. The event signal processing unit outputs information that indicates the difference in the times at which the first sensor and the second sensor have generated respective event signals for a brightness fluctuation event.
Patent WO-2020066577-A1 (WO)
Inventor: AWAZU KUNIO
IPC: A61P1/02
Filed: 2019-09-10
Abstract: The present invention addresses the problem of providing a therapeutic drug and a therapeutic method that enable photodynamic therapy (PDT) against periodontal disease-causing pathogenic microbes for which conventional PDTs are not effective. The present invention involves: administering, to a site affected by periodontal disease, a therapeutic drug, for periodontal disease, containing a compound represented by formula (I) (in the formula, R 1  represents a hydrogen atom or an acyl group, R 2  represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, or an aralkyl group) or a pharmaceutically acceptable salt thereof; and then irradiating the site with light having a wavelength of 360-700 nm.