baber/WOPTO huggingface dataset:
Patent JP-2022123016-A (JP)
Title: Information processor, terminal
IPC: B60R21/00
Filed: 2022-06-10
Abstract: PROBLEM TO BE SOLVED: To provide an information processor and a terminal which prevent erroneous notification in an accident notification system for notifying occurrence of an accident. 
     SOLUTION: In an accident notification system which is constituted of a server device 20 and a plurality of terminals 10-1 to 10-n (n is an integer greater or equal to 2), the server device includes: an accident notification acceptance part which accepts accident notification including accident determination information showing that it is determined that an accident occurs in a moving body and occurrence point information showing a point which is determined that the accident occurs from the moving body; a cancellation notification acceptance part which accepts cancellation notification for canceling the accident notification; and an area specification part which records the occurrence point information included in the accident notification cancelled by the cancellation notification and specifies a cancellation notification frequent occurrence point on the basis of the recorded occurrence point information. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023183857-A (JP)
Title: 工具および工具の使用方法
IPC: B25B23/14
Filed: 2022-06-16
Abstract: 【課題】 
  ナットの本締めを行いながら、本締め後のナットを確実に撮影し、ナット締結検査装置に適した画像を取得できる工具および工具の使用方法を提供する。 
【解決手段】 
  工具は、ボルトにナットを締結するためのものであって、ナットに着脱可能な第１ソケット部を駆動部により回転させる工具部と、工具部に設けられるカメラと、を備えている。被締結物に通されたボルトに一次締めされたナットに第１ソケット部を装着した状態において、カメラは、被連結物に通された別のボルトに本締めされたナットを撮影可能な位置および姿勢である。 
【選択図】      図１
Patent JP-2023183988-A (JP)
Title: 遊技機
IPC: A63F7/02
Filed: 2022-06-17
Abstract: 【課題】操作手段を隠す状態と露出させる状態とを構成できる遊技機を提供すること。【解決手段】遮蔽状態から露出状態へ切り替える態様で実行される所定操作に基づいて第２検出センサＳＳＣ２によって検出がされた場合に第１の演出が実行され、更に、第２動作部材Ｓ３２０に対する操作が継続して実行された場合に第２の演出に変わるように構成されることから、動作部材Ｓ３１０が遮蔽状態であるか露出状態であるかに関わらず、第２動作部材Ｓ３２０の操作に対する期待感を向上させることができる（動作部材Ｓ３１０が遮蔽状態である場合であっても、動作部材Ｓ３１０を遮蔽状態から露出状態へ切り替える態様の操作に基づく第２動作部材Ｓ３２０の操作が実行可能となっており、その操作が促されることに対する期待感を向上させることができる）。従って、操作手段を隠す状態と露出させる状態とを好適に構成することができる。【選択図】図４５７
Patent JP-2024001495-A (JP)
Title: 加工装置
IPC: B24B55/06
Filed: 2022-06-22
Abstract: 【課題】被加工物に付着した液体によって適切な研磨加工が阻害されることを防止可能な加工装置を提供する。【解決手段】被加工物を加工する加工装置であって、被加工物を保持する保持面を有するチャックテーブルと、研削ホイールが装着されるスピンドルを有する研削ユニットと、研磨パッドが装着されるスピンドルを有する研磨ユニットと、研削ホイールによる被加工物の研削が行われる研削領域と研磨パッドによる被加工物の研磨が行われる研磨領域との間でチャックテーブルを移動させる移動機構と、チャックテーブルが研削領域と研磨領域との間を移動する際に、被加工物の被加工面側に残存する液体を除去する液体除去部と、を備える。【選択図】図１
Patent JP-2024002263-A (JP)
Title: 光源装置及び投写型表示装置
IPC: G03B21/14
Filed: 2022-06-23
Abstract: 【課題】光源の光利用効率を向上させ、より明るい照明光を出力することができる光源装置を提供する。【解決手段】本開示に係る光源装置は、第１の波長域の直線偏光光であって、第１の偏光方向の第１の光と、第１の偏光方向に直交する第２の偏光方向の第２の光とを出射する光源部と、光源部からの第１の光を透過し、第２の光を反射する偏光分離素子と、蛍光体と、位相変換素子とを備える。偏光分離素子は、第１の波長域を含む偏光透過波長領域において、第１の偏光方向の光を透過し、第２の偏光方向の光を反射し、偏光透過波長領域よりも長波長側の波長域の光を偏光方向によらず反射する。蛍光体は、偏光分離素子を透過した第１の光を偏光透過波長領域よりも長波長側の波長域の第３の光に変換し、位相変換素子は、偏光分離素子で反射された第２の光を第１の偏光方向の第４の光に位相変換し、偏光分離素子は、第３の光と前記第４の光とにより照明光を合成する。【選択図】図１
Patent JP-2024003341-A (JP)
Title: 電子写真用ベルト、定着装置及び画像形成装置
IPC: G03G15/20
Filed: 2022-06-27
Abstract: 【課題】 高温高湿環境で保管した後であっても、金属層が基材から剥離しにくく、かつ内面層が削れにくい電子写真用ベルト及び定着ベルトを提供する。【解決手段】 ポリイミド及びポリアミドイミドの少なくとも一方を含むエンドレス形状の基材と、該基材の外周面上に設けられた金属層と、該金属層の外周面上に設けられた表面層と、を具備する電子写真用ベルトであって、該基材の内周面に接して設けられた内面層をさらに有し、該内面層の水蒸気透過度が１０ｇ／（ｍ２・ｄａｙ）以下である。【選択図】 図３
Patent JP-2022153376-A (JP)
Title: End-to-end speaker recognition using deep neural network
IPC: G06N3/04
Filed: 2022-06-29
Abstract: PROBLEM TO BE SOLVED: To provide a speaker recognition device and method for training a front-end feature extractor using a deep neural network (DNN) with triplet network architecture. 
     SOLUTION: A DNN includes three feed-forward neural networks that are trained according to batch processing utilizing a cohort set of negative training samples. After each batch of training samples has been processed, the DNN is trained according to a loss function that utilizes cosine similarity between the respective samples, for example, along with positive and negative margins, to provide a robust representation of voiceprints. 
     SELECTED DRAWING: Figure 2A 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2024007243-A (JP)
Title: 樹脂製の容器
IPC: B65D41/04
Filed: 2022-07-05
Abstract: 【課題】簡易な構造で、より確実に液止め性を向上させた樹脂製の容器を提供する。【解決手段】容器本体内の内容物が通過する流路を形成し、外径面に雄ねじを有する樹脂製且つ筒状の口部３と、天板部と上記天板部の外周部に連続する筒部とを有し、上記筒部の内径面に上記雄ねじに螺合可能な雌ねじが形成された樹脂製のキャップ４と、を備え、上記キャップ４は、上記天板部の内面側外周部に、周方向に延びる環状のアウターリング１０を有し、そのアウターリング１０は、内径側を向く環状の内周面に、上記天板部側が相対的に上記キャップの中心軸側に位置するように傾斜した環状の傾斜面１０ｂを有し、上記口部３は、先端部側端面の外縁の角部に、閉栓の際に上記傾斜面１０ｂに当接可能で且つ周方向に延びる環状の段差Ｓを有する、樹脂製の容器。【選択図】図５
Patent JP-2024008507-A (JP)
Title: レーザー加工装置
IPC: H01L21/301
Filed: 2022-07-08
Abstract: 【課題】加工に寄与するレーザービームのエネルギーを減少させることなく、所望の形状で被加工物を加工することが可能なレーザー加工装置を提供すること。【解決手段】レーザー加工装置のレーザービーム照射ユニット２０は、レーザー発振器２１と、レーザー発振器２１から出射したレーザービーム２０１を被加工物１００上に結像する結像素子２３と、レーザー発振器２１と結像素子２３との間に配設され、被加工物１００に設定された分割予定ラインと平行なＸ軸方向に対してはレーザービーム２０３がガウス分布に沿った強度分布を形成し、被加工物１００に設定された分割予定ラインの幅方向であるＹ軸方向に対してはレーザービーム２０３が結像点においてトップハット形状に沿った強度分布を形成するように、レーザービーム２０１に位相差を生じさせる位相変調ユニット２２と、を有することを特徴とする。【選択図】図２
Patent JP-2024009492-A (JP)
Title: スライダーおよびスライドファスナー
IPC: A44B19/26
Filed: 2022-07-11
Abstract: 【課題】ファスナーテープの見え幅を狭めても表皮などとの干渉を低減できるスライダーおよびスライドファスナーを提供すること。【解決手段】スライダー１は、Ｘ方向の案内路を形成する上部材４０および下部材５０を備える。上部材４０は、基部４１および押え部４２を有する。下部材５０は、分離案内部５１および連結案内部６１を有する。連結案内部６１は、底壁部６２および左右の側壁部６３，６４を有する。分離案内部５１は、底壁部６２のＹ方向における中間部分に連続した本体部５２と、基部４１に接続された接続部５３とを有する。分離案内部５１には、エレメント列３２を分離案内可能に前記上部材に向かって立ち上げられた分離案内面５５が形成される。【選択図】図１
Patent JP-2024010756-A (JP)
Title: 情報処理装置、情報処理方法及び情報処理プログラム
IPC: G06F16/903
Filed: 2022-07-13
Abstract: 【課題】対象番組の視聴率予測に用いる関連番組を高精度に抽出することができる情報処理装置、情報処理方法及び情報処理プログラムを提供する。【解決手段】本開示の一態様に係る情報処理装置３０は、取得部３１と抽出部３２と予測部３３を有している。取得部３１は、対象番組の視聴率予測に用いる関連番組の候補となる過去番組を取得する。抽出部３２は、過去番組の放送局、放送日時、番組名及び番組内容に基づいて、過去番組の中から関連番組を抽出する。予測部３３は、関連番組を用いて対象番組の視聴率を予測する。【選択図】図２
Patent JP-2022137263-A (JP)
Title: earphone
IPC: H04R1/10
Filed: 2022-07-19
Abstract: PROBLEM TO BE SOLVED: To provide an earphone device which has good fitness and can provide considerably improved sound quality. 
     SOLUTION: An earphone comprises: a housing 5 which houses in the inside thereof, a driver unit 12 converting an inputted electrical signal into vibration; a sound conduit 4 in which an end portion is fitted in the state that the end portion protrudes away from a center position of the housing 5 outside the center position on a front surface of the housing 5; an earpiece 3 whose maximum diameter is formed smaller than a maximum diameter of the housing 5, which is fitted to the end of the sound conduit 4 and holds the housing 5 in the auricle by being formed with an elastic member, adapting to the shape of the external auditory canal, and deforming; and a cord holding portion 6 which is almost a cylindrical shape whose outer diameter is formed smaller than the maximum diameter of the housing 5 and the earpiece 3, is connected to a rear portion of the housing 5, and draws a cord 7 connected to the driver unit 12 to the outside from the housing 5. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2022,JPO&INPIT
Patent JP-2023058002-A (JP)
Title: Floating contact device
Inventor: HIROSE MAYU
IPC: B25J17/02
Filed: 2022-07-29
Abstract: To provide a floating contact device provided with a floating mechanism capable of coping with variations in connector positions in all directions that are front and rear, left and right, and inclination.SOLUTION: A floating contact device 1, which drives in a contact direction an equipment-side connector 34 capable of being brought into contact with a work-side connector and capable of moving along the contact direction and which brings the equipment-side connector 34 into contact therewith while adjusting a position of the equipment-side connector, includes a floating unit 3 and a drive device 5. The floating unit 3 has: a floating base 31; a spring 311; a positioning pin 321 having a projection 3211 projecting in the contact direction; a positioning base 32 having a spherical portion projecting in a direction opposite to the contact direction; a guide member 33 having a recess capable of being brought into contact with the projection 3211; and the equipment-side connector 34. The drive device has a drive plate 51.SELECTED DRAWING: Figure 8
Patent JP-2023026357-A (JP)
Title: Interference check device, interference check method, and interference check system
Inventor: SUZUKI SHINJI
IPC: G05B19/4061
Filed: 2022-08-05
Abstract: To provide a technology making it easy to check an interference between structures of a processing apparatus according to a simple method.SOLUTION: An interference check device 300 checks an interference between structures in a storage part of a processing apparatus including a main shaft 11 that rotates while retaining a tool 12, a retention part 41 that retains a processing object to be processed with the tool 12, pieces of moving means 10, 20, 30, 50, and 60 that relatively move the main shaft 12 and retention unit 41 in predetermined directions, and a storage part that stores the retention unit 41. The interference check device includes a processing unit 310 that reads an NC file, and extracts and handles a motion command for the moving means, and a memory unit 320 that stores in advance information on a prohibited area where an interference is prohibited. The processing unit 310 checks whether machine coordinate values calculated from coordinate values on the NC file are encompassed in the prohibited area.SELECTED DRAWING: Figure 5
Patent JP-2023074459-A (JP)
Title: Method for producing alicyclic polycarbonate
Inventor: CHANG YUYING
IPC: C08G64/26
Filed: 2022-08-09
Abstract: To provide a method for producing alicyclic polycarbonate that has properties such as high molecular weight and high purity, and matches use requests for food product containers, optical and medical products.SOLUTION: A method for producing alicyclic polycarbonate of high molecular weight includes: dissolving 2,2-bis(4-hydroxycyclohexyl)propane under the presence of first solvent, organic base catalyst and co-catalyst to form mixed solution, and adding bis(trichloromethyl)carbonate dissolved into second solvent to the mixed solution to perform polycondensation reaction to produce alicyclic polycarbonate having a peak value of molecular weight larger than 12000.SELECTED DRAWING: Figure 1
Patent JP-2022160661-A (JP)
Title: Generation of single stranded circular dna templates for single molecule sequencing
IPC: C12Q1/6869
Filed: 2022-08-10
Abstract: PROBLEM TO BE SOLVED: To provide a novel method of separately sequencing each strand of a nucleic acid involving the use of an adaptor comprising a strand cleavage site or a strand synthesis termination site. 
     SOLUTION: The method comprises: joining ends of a double stranded target nucleic acid to adaptors to form a doubly-adapted target nucleic acid where the adaptor is a single strand comprising a double-stranded stem and a single-stranded loop comprising a primer binding site; contacting the doubly-adapted target nucleic acid with an exonuclease to enrich the doubly-adapted target nucleic acid; contacting the doubly-adapted target nucleic acid with a primer capable of hybridizing to the primer binding site; and extending the primers thereby separately sequencing each strand of the target nucleic acid. 
     SELECTED DRAWING: None 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2022164715-A (JP)
Title: hot melt adhesive
IPC: C09J153/02
Filed: 2022-08-17
Abstract: PROBLEM TO BE SOLVED: To provide a hot melt adhesive which is excellent in holding force and flavor resistance and shows little adhesive residue and unpleasant odor. 
     SOLUTION: A hot melt adhesive has (A) a thermoplastic block copolymer being a copolymer of vinyl-based aromatic hydrocarbon and a conjugated diene compound, where (A) the thermoplastic block copolymer contains (A1) an unhydrogenated product of a triblock type styrene isoprene block copolymer and (A2) an unhydrogenated product of a styrene butadiene block copolymer, and does not have an amount of 5 pts.wt. or more of (B) an α-methyl styrene-based resin with respect to 100 pts.wt. of the total weight of (A) and (B). 
     SELECTED DRAWING: None 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023063230-A (JP)
Title: System, device and method for performing maintenance of at least one part of object
IPC: F03D80/50
Filed: 2022-09-06
Abstract: PROBLEM TO BE SOLVED: To provide a system, device and method for performing maintenance of at least one part of an object safely and easily. 
     SOLUTION: A system for performing maintenance of at least one part of an object comprises: at least one attachment device (300) configured to be attached to a prescribed position on the object; at least one rope holding device (200) configured to receive at least one rope extending from the at least one attachment device and to hold the at least one rope at any position on the at least one part of the object; and a maintenance device (100) configured to perform the maintenance of the at least one part of the object. 
     SELECTED DRAWING: Figure 1K 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2022177169-A (JP)
Title: Charger for aerosol generation device
IPC: A24F40/90
Filed: 2022-09-16
Abstract: PROBLEM TO BE SOLVED: To provide an aerosol generation device charger that can be used as a social recharging hub for promoting social connection. 
     SOLUTION: A charger 100 for charging a plurality of batteries together or simultaneously has ability to associate battery identifiers of one or more batteries with a user. The user gets associated with an aerosol generation device and a mobile user device 108. The charger establishes connection with the mobile user device and communicates with the mobile user device using a communication interface 106. User data, such as preferences, interests, and music is conveyed from the mobile user device to the charger, and is used in order to promote social opportunities for the user, in particular, in a public or social space with other users, or in order to make a space around the user more comfortable. 
     SELECTED DRAWING: Figure 3 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2022171977-A (JP)
Title: Toxic aldehyde-related diseases and treatment
IPC: A61P9/10
Filed: 2022-09-22
Abstract: PROBLEM TO BE SOLVED: To provide the treatment, prevention, and/or reduction of a risk of a disease, disorder, or condition in which aldehyde toxicity is implicated in the pathogenesis, including ocular disorders, skin disorders, conditions associated with injurious effects from blister agents, and autoimmune, inflammatory, neurological and cardiovascular diseases, by the use of a primary amine to scavenge toxic aldehydes such as MDA and HNE. 
     SOLUTION: The invention also relates to the use of a compound (e.g., a primary amine compound) described herein in the manufacture of a medicament for the treatment, prevention, and/or reduction of a risk of a disease, disorder, or condition in which aldehyde toxicity is implicated in the pathogenesis; or the use of a compound (e.g., a primary amine compound) described herein in treating, preventing, and/or reducing a risk of a disease, disorder, or condition in which aldehyde toxicity is implicated in the pathogenesis. 
     SELECTED DRAWING: None 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2022191285-A (JP)
Title: Cationic mucic acid polymer-based delivery systems
IPC: A61K9/51
Filed: 2022-09-28
Abstract: PROBLEM TO BE SOLVED: To provide polymer and polymer conjugate based nanoparticle delivery systems for delivering biological agents, and methods of making and using these compositions. 
     SOLUTION: Certain embodiments of the present disclosure provide polymers comprising alternating charged and uncharged segments comprising one or more of the following structural units of Formula (I), (II) or (III), where A is an uncharged segment comprising polyalkylene glycol, and B is a cationically charged segment comprising at least one polyhydroxy linkage. 
     SELECTED DRAWING: Figure 10 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2024008768-A (JP)
Title: 対象者見守りシステム、対象者見守り装置及びプログラム
IPC: G08B25/04
Filed: 2022-09-28
Abstract: 【課題】低コストに且つ高精度に在宅中の対象者の身体状況を監視しつつ、異常の発生を見守り者に通報可能な対象者見守りシステム等を提供する。【解決手段】対象者宅ＭＨの出入口ＥＥ近傍に設置したＦＭＣＷ方式の電波式センサ送信機１０により対象者の外出及び帰宅を検知して、対象者が在宅状態にあるか否かを管理して、在宅状態の時に対象者に異常が検知された場合に通報受信装置３０に緊急通報メッセージを送信する。【選択図】図１
Patent JP-2023068624-A (JP)
Title: Operator fraud detection system
Inventor: HIROTO KENICHIRO
IPC: H04N7/18
Filed: 2022-10-07
Abstract: To monitor an entire room of an operator who works remotely so as to detect fraud, and report the fraud to an administrator.SOLUTION: An operator fraud detection system comprises: a fish-eye camera 23 connected to an operator terminal 20 for capturing an operator 2 and a work environment; a camera monitoring unit 221 that detects a fraudulent or abnormal event in the operator 2 or the work environment from an image captured by the fish-eye camera 23; and a warning processing unit 222 that outputs a warning to the operator 2 when the event is detected by the camera monitoring unit 221, and locks a portion related to a contact center business in the operator terminal 20, wherein: the camera monitoring unit 221 identifies a substantially rectangular object held by the operator 2 by image recognition processing from a moving image, and further determines whether or not the substantially rectangular object is a smartphone, and it is assumed that the camera monitoring unit has detected the event when this substantially rectangular object is a smartphone.SELECTED DRAWING: Figure 1
Patent JP-2023099445-A (JP)
Title: Vibration apparatus and apparatus including the same
Inventor: KIM MINJI
IPC: H04R17/00
Filed: 2022-10-25
Abstract: To provide a vibration apparatus improved in sound quality.SOLUTION: A vibration apparatus includes: a first cover member; a second cover member; a vibration portion between the first cover member and the second cover member; a contact portion between the first cover member and the vibration portion; and a signal cable. The signal cable includes: a first signal line connected to a first surface of the vibration portion via the contact portion; and a second signal line connected to a second surface of the vibration portion opposite to the first surface of the vibration portion.SELECTED DRAWING: Figure 1
Patent JP-2023011727-A (JP)
Title: CAS9 variants and methods of use
IPC: C12N1/19
Filed: 2022-10-26
Abstract: PROBLEM TO BE SOLVED: To provide a more effective, efficient, or otherwise more robust or flexible Cas-based genome modification methods for modifying/altering a genomic target site in a prokaryotic or eukaryotic cell. 
     SOLUTION: Compositions and methods are provided for variant Cas systems and elements comprising such systems, for example, Cas endonuclease variants, guide polynucleotide/Cas endonuclease complexes comprising Cas endonuclease variants, as well as guide polynucleotides and guide RNA elements that can interact with Cas endonuclease variants. Compositions and methods are provided for genome modification of a target site in the genome of a cell. The methods and compositions employ a guide polynucleotide/Cas endonuclease system comprising a Cas9 endonuclease variant to provide an effective system for modifying or altering target sequences within the genome of a cell or organism. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023070110-A (JP)
Title: Heating device with improved efficiency
Inventor: GORDAN DZEBA
IPC: F23L15/00
Filed: 2022-10-28
Abstract: To provide a heating device, preferably for the combustion of biomass products, in particular pellets made from biomass, with increased efficiency, a method for increasing the efficiency of the heating device and a corresponding use.SOLUTION: A heating device comprises: a burner part comprising a combustion chamber, a double-walled internal hollow combustion chamber wall 10 having an upper opening leading from above a combustion zone to the inside of the combustion chamber, a flue gas duct 22 for conducting flue gas downward along the combustion chamber, a heat exchanger area following the flue gas duct 22, the heat exchanger area comprising a flat tube flue gas heat exchanger 3 and a tertiary air heat exchanger 2, and a radiant heat exchanger 5 disposed above the combustion chamber; and a heating part comprising an air suction blower 23, an exhaust heat exchanger 7 having the same heat transfer medium as the flat tube flue gas heat exchanger 3, and an outlet opening 24 for heated air. The flat tube flue gas heat exchanger 3 forms a heat exchange circuit with the exhaust heat exchanger 7.SELECTED DRAWING: Figure 1
Patent JP-2022190166-A (JP)
Title: Semiconductor device and method for manufacturing the same
IPC: H01L21/316
Filed: 2022-11-07
Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor device including a good SiO 2  layer. 
     SOLUTION: A semiconductor device comprises: a SiC semiconductor layer 2 of a first conductivity type; a plurality of body regions 8 of a second conductivity type formed on a surface of the SiC semiconductor layer; a plurality of source regions 26 of the first conductivity type each of which is formed on each of surface sides of the plurality of body regions; a SiO 2  layer 12 formed on the SiC semiconductor layer so as to straddle the plurality of adjacent source regions and including a connection surface in contact with the SiC semiconductor layer and a non-connection surface located on the opposite side of the connection surface; a gate electrode 13 arranged on the non-connection surface of the SiO 2  layer so as to expose a part of the non-connection surface; and an inter-layer insulation layer 31 covering an exposed part of the non-connection surface of the SiO 2  layer and the gate electrode. The SiO 2  layer comprises a carbon density tapering region 23 in which the carbon density tapers from the connection surface toward the non-connection surface, and a low carbon density region 24 which is formed on the non-connection surface side of the carbon density tapering region and whose carbon density is smaller than the carbon density tapering region. 
     SELECTED DRAWING: Figure 1 
     COPYRIGHT: (C)2023,JPO&INPIT
Patent JP-2023095777-A (JP)
Title: Light-emitting device
Inventor: IMAI TAKESHI
IPC: H01S5/022
Filed: 2022-11-08
Abstract: To provide a light-emitting device in which a speckle noise is reduced.SOLUTION: A light-emitting device comprises a plurality of semiconductor laser elements arranged in a matrix shape of M rows and N columns (a natural number of M≥2 and a natural number of N≥3), and including: two or more first semiconductor laser elements each having an emission peak wavelength of a first wavelength; two or more second semiconductor laser elements each having an emission peak wavelength of a second wavelength shorter than the first wavelength; and two or more third semiconductor laser elements each having an emission peak wavelength of a third wavelength shorter than the second wavelength. In a whole or a part of the M rows and the N columns, the plurality of semiconductor laser elements are arranged such that in a row direction, a semiconductor laser element other than the first semiconductor laser element is arranged adjacent to the first semiconductor laser element, a semiconductor laser element other than the second semiconductor laser element is arranged adjacent to the second semiconductor laser element, and a semiconductor laser element other than the third semiconductor laser element is arranged adjacent to the third semiconductor laser element.SELECTED DRAWING: Figure 6