baber/WOPTO huggingface dataset:
Patent JP-2018080445-A (JP)
Title: Floor structure
Inventor: SHIROMA HIROYUKI
IPC: E03D13/00
Filed: 2016-11-14
Abstract: PROBLEM TO BE SOLVED: To provide a floor structure allowing easy washing of dirt of the surface of a floor board.SOLUTION: A floor structure 11 is used for washing the surface of a floor board 20a and is composed of: the floor board 20a set under a toilet bowl 1, formed of a water permeable resin material having water permeability and having a second jet hole 28a being a jet hole 25 penetrating through front and rear surfaces of the board; a water feed pipe 34a set under the floor board 20a, and being water feeding means 31 capable of feeding water toward the second jet hole 28a being the jet hole 25; and a discharge port 50 and a water discharge pipe 48 set under the floor board 20a, and being water discharge means 46 for discharging water falling via the floor board 20a. Thus, the water fed from the water feeding means 31 reaches the front surface of the floor board 20a via the second jet hole 28a, then dissolves dirt on the surface and the dirt-dissolved water falls via the floor board 20a and is discharged by the water discharge means 46, therefore, the dirt on the surface of the floor board 20a can be easily washed.SELECTED DRAWING: Figure 2
Patent JP-2017052966-A (JP)
Title: Polycarbonate-polyorganosiloxane copolymer
Inventor: NAGAO SACHIKO
IPC: C08G64/08
Filed: 2016-11-15
Abstract: PROBLEM TO BE SOLVED: To provide a polycarbonate-polyorganosiloxane copolymer (PC-POS) having carbon tetrachloride concentration of less than 4 mass.ppm, and a method for manufacturing the same industrially stably and continuously.SOLUTION: There is provided a method for manufacturing a polycarbonate-polyorganosiloxane copolymer having carbon tetrachloride concentration of less than 4 mass.ppm, which is capable of conducting distillation purification with suppressing foaming of ethylene chloride at good efficiency by controlling concentration of PC-POS which is contaminated in a column bottom liquid by drawing the column bottom liquid from a column bottom part during distillation.SELECTED DRAWING: None
Patent JP-2017112822-A (JP)
Title: Power factor improvement converter and control method of the same
Inventor: WU CHI SHENG
IPC: H02M3/155
Filed: 2016-11-16
Abstract: PROBLEM TO BE SOLVED: To provide a power factor improvement converter and a control method of them.SOLUTION: In the present invention, a power factor improvement converter and a control method of them are disclosed. A power factor inputted to a back end load is changed by input an AC signal to a converter, converting the AC signal into a DC signal, and performing a power factor improvement to the DC signal. The control method includes: a rectification step; a feedback step; a ripple calculation step; a ripple cancellation step; a logical operation step; a pulse width modulation step; and a power factor improvement step. When a binary side ripple component in a feedback signal is eliminated through the steps, a response speed of the power factor improvement converter is increased, and a current distortion is reduced, the power factor inputted to the back end load is increased.SELECTED DRAWING: Figure 2
Patent JP-2018033918-A (JP)
Title: Game machine
Inventor: SHINOHARA NAOYUKI
IPC: A63F7/02
Filed: 2016-11-18
Abstract: PROBLEM TO BE SOLVED: To provide a game machine capable of increasing a player's interest in a game.SOLUTION: A game machine comprises: dynamic display means capable of dynamically displaying identification information for indicating a determination result by determination means in a display means for a predetermined period of time; privilege game execution means for executing a privilege game which is advantageous to a player when the identification information for indicating a specific determination result is stopped and displayed in the display means; symbol display means for displaying a corresponding symbol for each piece of information stored in the storage means before being determined by the determination means; and symbol display area variable means for varying a display mode of an area in which the symbol is displayed in the symbol display means in accordance with the number of pieces of information stored in the storage means.SELECTED DRAWING: Figure 207
Patent JP-2018085417-A (JP)
Title: Manufacturing method of semiconductor device
Inventor: WAKASUGI YUKIHIRO
IPC: H01L29/12
Filed: 2016-11-22
Abstract: PROBLEM TO BE SOLVED: To provide a technique for preventing occurrence of crack in the resist, when coating the upper surface of a SiC semiconductor substrate with resist by spin coating, and then the SiC semiconductor substrate is exposed to high temperature.SOLUTION: A manufacturing method of semiconductor device includes a step of forming an active region and a peripheral region on the upper surface of the SiC semiconductor substrate, where the active region has a trench structure, the peripheral region surrounds the active region, and the upper surface of the SiC semiconductor substrate in at least a part of the peripheral region projects above the upper surface of the SiC semiconductor substrate in the active region, and a step of coating the upper surface of the SiC semiconductor substrate with resist by spin coating.SELECTED DRAWING: Figure 4
Patent JP-2018083347-A (JP)
Title: Substrate with terminal fitting hole and manufacturing method therefor
Inventor: SAITO SHINYA
IPC: B29C45/27
Filed: 2016-11-24
Abstract: PROBLEM TO BE SOLVED: To provide a substrate with a terminal fitting hole capable of maintaining strong strength around the terminal fitting hole even when weld of a joint area generated by molten resins contacting each other is generated, and a manufacturing method therefor.SOLUTION: There is provided a substrate with a terminal fitting hole 1 by forming a circuit patterns 13, 15 on a surface of a substrate 11 consisting of a resin-made sheet body and the terminal fitting hole 17. The substrate 11 is constituted by integrating a first substrate 11A constituting a part of the substrate 11 and a second substrate 11B covering a top surface of the first substrate 11A by an injection molding. Positions of a resin injection part a1 of the first substrate 11A, and a resin injection part a2 of the second substrate 11B, are different.SELECTED DRAWING: Figure 2
Patent JP-2018084696-A (JP)
Title: Optical waveguide film and optical component
Inventor: KANEDA MIKIYA
IPC: G02B6/122
Filed: 2016-11-24
Abstract: PROBLEM TO BE SOLVED: To provide an optical waveguide film with excellent manufacturing stability of an optical connector.SOLUTION: A long optical waveguide film 100 comprises a lower clad layer 130, a pattern-like core part 112 provided on the lower clad layer, and an upper clad layer 120 provided on the core part. An optical connector insertion region 106 is provided at least one end of the optical waveguide film. In the optical connector insertion region, when a surface roughness on a side surface of the optical waveguide film extending in a longitudinal direction of the core part is SRa, SRais lower than or equal to 0.2 μm.SELECTED DRAWING: Figure 1
Patent JP-2017038968-A (JP)
Title: Game machine
Inventor: KISHIMOTO SHINJI
IPC: A63F7/02
Filed: 2016-11-28
Abstract: PROBLEM TO BE SOLVED: To provide a game machine capable of executing a prescribed control under a situation where numerical information is accurately acquired.SOLUTION: In an updating circuit 101, a jackpot random number stored in an updating buffer 101b is sequentially updated in synchronization with a clock signal from a clock circuit 101a. Then, when a detection signal SG1 corresponding to an occurrence of a winning is transmitted from an operation port winning detection sensor 45, the jackpot random number in the updating buffer 101b is stored in a jackpot random number register 102. The detection signal SG1 from the operation port winning detection sensor 45 is also received in an MPU 62. By receiving the detection signal SG1 corresponding to the occurrence of the winning, the MPU 62 obtains the jackpot random number from the jackpot random number register 102. In this case, the MPU 62 utilizes the received jackpot random number to monitor presence or absence of a communication abnormality.SELECTED DRAWING: Figure 8
Patent JP-2018087502-A (JP)
Title: Operation method of steam turbine device and steam turbine device
Inventor: MURAKAMI KENICHI
IPC: F01D17/18
Filed: 2016-11-28
Abstract: PROBLEM TO BE SOLVED: To raise conversion efficiency to a turbine output by reducing a pressure loss caused by a steam regulation valve when main steam pressure is varied and a steam flow rate is adjusted.SOLUTION: A steam turbine device 1 comprises: a steam chamber casing 4 in which a plurality of nozzle ports are formed along a circumferential direction; bulkheads 10, 11 and 12 which are arranged in the steam chamber casing 4, and partitioned to a main steam chamber 14 and sub-steam chambers 15, 16 which are smaller than the main steam chamber 14 in capacities; main steam piping 18 for supplying steam to the main steam chamber 14; sub-steam piping 19, 20 for distributing a part of the steam supplied to the main steam chamber 14 to the sub-steam chambers 15, 16; on/off-valves 21, 22 arranged in the sub-steam piping 19, 20; a pressure gauge 26 for measuring the pressure of the steam flowing in the main steam piping 18; and a control part 27 for closing the on/off-valves 21, 22 when the measured pressure of the steam is not lower than a prescribed threshold, and opening the on/off-valves 21, 22 when the pressure of the steam is lower than the prescribed threshold.SELECTED DRAWING: Figure 2
Patent JP-2018093564-A (JP)
Title: motor
Inventor: TAMAMURA TOSHIYUKI
IPC: H02K5/00
Filed: 2016-11-30
Abstract: PROBLEM TO BE SOLVED: To provide a motor capable of adjusting a position of an interval of a vibration-proof ring with respect to a motor body.SOLUTION: A motor 100 comprises: a stator 22 which comprises a stator core and in which a first projection which projects toward a direction opposite to a direction where the stator core is positioned is molded; a rotor 23 which is freely rotatably held inside the stator 22; a rotation shaft 24 inserted into the center of the rotor 23; a bracket 5 in which a second projection projected toward a direction opposite to the direction where the first projection projects is formed and which is fixed to the stator 22; and a pair of vibration-proof rings 15a and 15b comprising elastic bodies 13 including openings 13a engaged with outer peripheral edges of the fist projection or the second projection and outer peripheral rings 14 comprising intervals 14a which cut a part of the bodies and make them discontinuous. A shape of the outer peripheral edge of at least one of the first projection and the second projection is that where at least three apexes are positioned on the same circumference with a shaft center J as the center.SELECTED DRAWING: Figure 3
Patent JP-2018092693-A (JP)
Title: ε- IRON OXIDE TYPE FERROMAGNETIC POWDER AND MAGNETIC RECORDING MEDIUM
Inventor: SHIRATA MASAFUMI
IPC: G11B5/706
Filed: 2016-11-30
Abstract: PROBLEM TO BE SOLVED: To provide ε- iron oxide type ferromagnetic powder capable of improving electromagnetic conversion property of a magnetic recording medium.SOLUTION: The ε- iron oxide type ferromagnetic powder has a ratio of coercive force Hcmeasured at 173K to coercive force Hcmeasured at 296K, Hc/Hc, is greater than 1.00 and less than 2.00. The magnetic recording medium comprises the ε- iron oxide type ferromagnetic powder in a magnetic layer.SELECTED DRAWING: None
Patent JP-2018091265-A (JP)
Title: Variable displacement vane pump
Inventor: NAGASAKA RYOICHI
IPC: F04C15/00
Filed: 2016-12-06
Abstract: PROBLEM TO BE SOLVED: To prevent deterioration of discharge characteristics of a vane pump.SOLUTION: A vane pump 100 includes a rotor 20, a plurality of vanes 30, a cam ring 40, a pump chamber 41, an adapter ring 50, a pump body 60, a body-side side plate 70, and a body-side port 73. The body-side side plate 70 has an expansion region 76a, a reduction region 76b, and a first pressure receiving surface 77 receiving a pressure introduced through the body-side port 73 toward the cam ring 40. The first pressure receiving surface 77 is formed deviated toward the reduction region 76b with respect to a rotating shaft of the rotor 20.SELECTED DRAWING: Figure 2
Patent JP-2018098834-A (JP)
Title: Power conversion device
Inventor: NOGI MASAYUKI
IPC: H02M3/28
Filed: 2016-12-08
Abstract: PROBLEM TO BE SOLVED: To provide a power conversion device capable of attaining downsizing.SOLUTION: A power conversion device comprises: multiple power conversion parts that are connected in series; multiple power conversion parts that are connected in parallel; and an insulation circuit. The multiple power conversion parts that are connected in series are connectable to a first power source. The multiple power conversion parts that are connected in parallel are connectable to a second power source that is different from the first power source. The insulation circuit connects the multiple power conversion parts that are connected in series, with the multiple power conversion parts that are connected in parallel.SELECTED DRAWING: Figure 1
Patent JP-2018094673-A (JP)
Title: Processing system and program
Inventor: SUYAMA AKIHIRO
IPC: B23Q15/00
Filed: 2016-12-13
Abstract: PROBLEM TO BE SOLVED: To do without installing the cutting tool after selecting an optimal cutting tool.SOLUTION: A processing system comprises a processing machine 1 for processing a workpiece 2 by the cutting tool 53 by taking out one cutting tool 53 from among the cutting tools 53 stored in a storage part 81, a computer 110 for operating the processing machine 1 and a computer 120 for generating tool path data for executing processing operation of the processing machine 1. The computer 110 generates a corresponding table of associating a tool ID and a storage part ID by accepting the tool ID of the cutting tool 53 stored in the storage part 81 by associating with the storage part ID of the storage part 81 by a user. The computer 120 selects an optimal tool ID from among the tool IDs existing in the corresponding table, and designates the storage part ID associated with the optimal tool ID as a designation identifier.SELECTED DRAWING: Figure 4
Patent JP-2018098061-A (JP)
Title: Cell battery
Inventor: JO TAKAHIRO
IPC: H01M50/204
Filed: 2016-12-14
Abstract: PROBLEM TO BE SOLVED: To provide a thin cell battery.SOLUTION: A cell device 10 houses a battery unit 20, and an electric circuit 50. The battery unit 20 and the electric circuit 50 are connected by a connecting member 80. Two planes in a thickness direction TH of the battery unit 20 define a first virtual plane VP1 and a second virtual plane VP2. The electric circuit 50 is arranged between the first virtual plane VP1 and the second virtual plane VP2. The electric circuit 50 is arranged at a side of the battery unit 20 in a width direction and a depth direction DD. In a terminal direction TMD of the battery unit 20, both ends of the connecting member 80 define a third virtual plane VP3 and a fourth virtual plane VP4. At least one part of the electric circuit 50 is provided between the third virtual plane VP3 and the fourth virtual plane VP4. A thickness of a battery portion 10a housing the battery unit 20 is restrained. A circuit portion 10b housing the electric circuit 50 is thinner than the battery portion 10a.SELECTED DRAWING: Figure 10
Patent JP-2018094143-A (JP)
Title: Pinball game machine
Inventor: NAKAYAMA HIROO
IPC: A63F7/02
Filed: 2016-12-14
Abstract: PROBLEM TO BE SOLVED: To provide a highly attractive pinball game machine equipped with different length of time regarding the time when a player can maintain sense of expectation for a reservation change by a precursory presentation related to the reservation change.SOLUTION: Precursory presentation processing (Figure 17) may possibly cause, for example if a precursory presentation A was performed one time, at three (3) timings of "after one (1) shift", "after two (2) shifts", and "after three (3) shifts" after the precursory presentation A was performed, a reservation change. But it is set such that if a precursory presentation B was performed one time, after the precursory presentation B was performed, the reservation change may possibly be caused at two (2) timings of "after one (1) shift" and "after two (2) shifts".SELECTED DRAWING: Figure 20
Patent JP-2018101017-A (JP)
Title: Substrate for forming display, display, and method for manufacturing display
Inventor: MAKINO MIU
IPC: B32B15/04
Filed: 2016-12-19
Abstract: PROBLEM TO BE SOLVED: To provide a substrate for forming a display, a display, and a method for manufacturing a display with which a glass base material can be securely separated from a resin base material even when the glass base material has unevenness in thickness.SOLUTION: A substrate for forming a display 10 is to form a display 20. The substrate for forming a display 10 includes a glass base material 11, a separation layer 12 that is laminated on the glass base material 11 and is decomposed by absorbing laser light L; and a metal layer 13 that is laminated on the separation layer 12 and can reflect the laser light L transmitted through the separation layer 12.SELECTED DRAWING: Figure 1
Patent JP-2018101218-A (JP)
Title: Portable electronic device, program, processing system, terminal and IC card
Inventor: OKUNO TOMOTAKA
IPC: G06F21/31
Filed: 2016-12-19
Abstract: PROBLEM TO BE SOLVED: To provide a portable electronic device, a program, a processing system, a terminal, and an IC card that are capable of improving security of portable electronic devices such as IC cards.SOLUTION: A portable electronic device according to an embodiment has a communication part, a storage part, and a determination part. The communication part communicates with a terminal. The storage part stores first information. The determination part determines propriety of authentication based on whether the information received from the terminal by the communication part matches second information generated from the first information stored in the storage part.SELECTED DRAWING: Figure 1
Patent JP-2018091593-A (JP)
Title: Pellet combustion device
Inventor: YUASA ISAO
IPC: F23B40/02
Filed: 2016-11-30
Abstract: PROBLEM TO BE SOLVED: To provide a pellet combustion device 100 capable of efficiently and continuously combusting a fire-retardant fuel pellet composed of a herbaceous resource plant with much saccharide, such as Erianthus.SOLUTION: A pellet combustion device 100 includes: a cylinder 7 that has a peripheral wall surface part 7a formed with many through-holes smaller than a fuel pellet a1 and arranged so that a central line is a lateral direction, and in an inward space of which the fuel pellet supplied to one end side of the inward space from the outside of the peripheral wall surface part 7a is combusted; an air supply unit 4 configured to pump air to the inward space through the through-holes from the outside of the cylinder 7, and then fluidize the air from the one end side of the inward space to the other side end; and a cinder treatment unit 3 configured to agitate, in the cylinder 7, cinders generated in the inward space by combustion of the fuel pellet.SELECTED DRAWING: Figure 2
Patent JP-2018100608-A (JP)
Title: Oil separator
Inventor: MATSUDA HIROTAKA
IPC: F01M13/04
Filed: 2016-12-20
Abstract: PROBLEM TO BE SOLVED: To provide an oil separator which allows elimination of a metallic rib even when the oil separator is provided on a side face of an engine block.SOLUTION: A prior stage separator 30 and a subsequent stage separator 40 are both composed only of a resin component. Therefore, unlike a (conventional) case where a rib continuing in a circumferential direction is provided integrally with an engine block, and a space surrounded by a side face of an engine block, a rib, and a resin cover is used as a prior stage separator, the rib provided integrally with the engine block and continuing in the circumferential direction can be eliminated.SELECTED DRAWING: Figure 3
Patent JP-2018101706-A (JP)
Title: Silicon carbide semiconductor device and silicon carbide semiconductor device manufacturing method
Inventor: OSE NAOYUKI
IPC: H01L29/12
Filed: 2016-12-20
Abstract: PROBLEM TO BE SOLVED: To provide a silicon carbide semiconductor device and a silicon carbide semiconductor device manufacturing method, which do not cause decrease in threshold voltage even when a channel length is decreased and on-resistance is decreased.SOLUTION: A trench-gate vertical MOSFET comprises an ntype drift layer 2 and a ptype base layer 6 which are epitaxially grown; and a trench 18 which pierces the ntype drift layer 2 and the ptype base layer 6. The trench 18 has a low concentration thin film 14 provided inside. The low concentration thin film 14 contacts the ptype base layer 6; and has a conductivity type the same with the ptype base layer 6; and has a lower impurity concentration than the ptype base layer 6.SELECTED DRAWING: Figure 1
Patent JP-2018102214-A (JP)
Title: Pericarp extract and method for producing the same
Inventor: URAI SOICHIRO
IPC: C12P21/06
Filed: 2016-12-27
Abstract: PROBLEM TO BE SOLVED: To provide a technique of producing a pericarp extract having a good flavor from citrus pericarp.SOLUTION: According to the present invention, citrus pericarp of 5 cm or less is enzyme-treated with hemicellulase and/or protease and then subjected to solid-liquid separation, providing an excellent pericarp extract.SELECTED DRAWING: Figure 3
Patent JP-2016512876-A (JP)
Title: 支持装置
IPC: F16F13/14
Filed: 2014-01-31
Abstract: 支持装置（１）であって、該支持装置が、コア（２）と、該コア（２）を取り囲む被覆体（３）とを有しており、コア（２）が、被覆体（３）に少なくとも１つのエラストマ（４，５）または複数のエラストマ（４，５）を介して支持されており、コア（２）と被覆体（３）との間に、作業流体を有する少なくとも２つの機能チャンバ（６，１１）が形成されており、該機能チャンバ（６，１１）が、少なくとも部分的に１つ以上のエラストマ（４，５）によって画定されている支持装置において、温度が低い場合の支持装置の剛性損失が可能な限り少なくなるように支持装置を形成するという課題に鑑みて、補償流体のための少なくとも１つの補償チャンバ（７）が設けられており、該補償チャンバ（７）から補償流体が機能チャンバ（６，１１）内に導入可能であり、補償チャンバ（７）内の補償流体が、可動のまたは弾性的な分離エレメント（８）によって、１つのガス充填された室（９）または複数のガス充填された室から分離されていることを特徴としている。
Patent JP-2016515936-A (JP)
Title: 吸収媒体、吸収媒体を製造するための方法、並びに酸性ガスから硫化水素を分離するための方法及び装置
IPC: B01D53/18
Filed: 2014-02-18
Abstract: 本発明は、溶解したアミノ酸塩及び溶解した金属を含有する吸収媒体に関する。吸収媒体は、吸収装置で酸性ガスと接触する。吸収装置において、Ｈ２Ｓはガス相から液体相に移動する。さらに、二酸化炭素（ＣＯ２）も同様に、接触時間の関数としてガスから吸収される。洗浄溶液は吸収装置から再生タンクに運ばれる。再生タンクにおいて、溶液は、空気、酸素（Ｏ２）富化空気、又は純粋な酸素で処理される。溶液へのＯ２の導入の結果として、溶液中に存在するＨ２Ｓが溶解した金属触媒と反応する。再生後、存在する可能性のある固体を分離し、再生された洗浄溶液を吸収装置に再循環する。
Patent JP-2016517797-A (JP)
Title: 膜の化学安定性の改善
IPC: B01D65/06
Filed: 2014-04-16
Abstract: 特に水濾過法のために用いられるような高分子膜は、酸、塩基及び／又は化学的に強化された逆洗のために通常用いられる酸化剤の有害作用に対して、式Ｉ［式中、ｋ及びｎは、独立して１〜１００の数であり、ｍは０〜１００の範囲にあり、（Ｘ）は、式（ＩＩ）のブロックであり、かつ（Ｙ）は、式（ＩＩＩ）のブロックであり、（Ａ）は、脂肪族若しくは芳香族のジイソシアネートリンカーの残基であり、（Ｂ）は、アルカノール末端基を含みかつ任意に１つ以上の脂肪族エーテル部位をさらに含む線状のオリゴシロキサン若しくはポリシロキサンの残基であり、かつ（Ｃ）は、芳香族のオリゴスルホンブロック若しくはポリスルホンブロックである］のオリゴウレタン若しくはポリウレタン又はかかるオリゴウレタン若しくはポリウレタンの混合物を導入することによって効果的に安定化させられる。
Patent JP-2016522680-A (JP)
Title: 容器
IPC: A24B15/30
Filed: 2014-04-15
Abstract: 受容物用容器。本発明の容器は胴体と蓋とを含み、これらは蓋を閉じた際に共に第１チェンバーを画定する。容器はある特性を第１チェンバー内の受容物に付与する物質を発する物質担体を有する。この物質担体はシールを含み、シールが開封されるまで物質担体から物質が発せられないようになっている。
Patent JP-2016521008-A (JP)
Title: コンパクトな静電放電（ｅｓｄ）保護構造
IPC: H01L29/812
Filed: 2014-05-02
Abstract: 少なくとも１つのダイオードおよび２つの抵抗器が、コンパクトな静電放電（ＥＳＤ）保護構造を備える、多重ゲートショットキー空乏モード電界効果トランジスタ（ＦＥＴ）。本ＥＳＤ保護構造は、典型的複数のダイオードＥＳＤ素子より小さい面積内にレイアウトされることができる。多重ゲートＦＥＴは、種々のタイプの高電子移動度トランジスタ（ＨＥＭＴ）素子、例えば、（シュードモルフィック型）ｐＨＥＭＴ、（メタモルフィック型）ｍＨＥＭＴ、誘導ＨＥＭＴを備えてもよい。ショットキー電界効果素子の複数のゲートは、ＥＳＤ保護素子に続く回路の保護のためのＥＳＤトリガおよび電荷排出経路を形成するために使用される。単一および二重極性ＥＳＤ保護素子は両方とも、その入力−出力回路の保護のために、集積回路ダイ上に提供されてもよい。
Patent JP-2016523524-A (JP)
Title: アルケノールデヒドラターゼ変異体
IPC: C12N1/21
Filed: 2014-05-16
Abstract: ３＜ｎ＜７である一般式ＣｎＨ２ｎＯに対応する化合物の、ＣｎＨ２ｎ−２＋Ｈ２Ｏへの変換を触媒する活性を向上させたアルケノールデヒドラターゼ変異体が記載されている。特に、例えばブタ−２−エン−１−オール（クロチルアルコール）の１，３ブタジエンへの変換において向上した活性を有し、かつ／またはブタ−３−エン−２−オールの１，３ブタジエンへの変換において向上した活性を有し、かつ／または３−メチルブタ−２−エン−１−オール（プレノール）もしくは３−メチルブタ−３−エン−２−オール（イソプレノール）のイソプレンへの変換において向上した活性を有し、かつ／または２，３−ジメチル−ブタ−２−エン−１−オールのジメチルブタジエンへの変換において向上した活性を有するアルケノールデヒドラターゼ変異体が記載されている。