Kyocera Document Solutions Inc.

Fujikin Inc.

Connectec Japan Corporation

Kyocera Documents Solutions Inc.

Kensuke Kojima

Hideki Okada

Fumio Sugai

Jun Azuma

Eiichi Miyamoto

Tomofumi Shimizu

Hiroki Tsurumi

Hiroshi Komatsu

Yohei Yamamoto

Jun Kimura

Akane Suzuki

Kensuke Okawa

Kenji Kitaguchi

An image acquiring apparatus includes: a light irradiation unit configured to be capable of radiating light modulated with a modulation signal in a predetermined frequency band; photosensors configured to be capable of receiving the light radiated from the light irradiation unit, the light including reflected light reflected by an object, and the photosensors being arranged in a matrix; and a generation unit configured to generate a DC component from an electrical signal output from the photosensor due to the light received by the photosensor on the basis of the predetermined frequency band or the modulation signal.

Image acquiring apparatus and display apparatus equipped therewith

A fingerprint sensor for a display device capable of suppressing loss of light due to diffraction of light and a display device with this fingerprint sensor are provided. A fingerprint sensor for a display device having a plurality of photosensors arranged in a matrix, each of the photosensors has a semiconductor film for converting incident light into an electric signal, and a bottom gate electrode as a light shielding film arranged on a lower layer side of the semiconductor film for blocking incident light from the lower layer side to the semiconductor film, wherein the bottom gate electrode has four corner portions in an outer contour shape in a top view, and each of the corner portions is rounded.

Fingerprint sensor and display device

A compound is represented by general formula (1). In general formula (1), Rand Reach represent, independently of one another, a hydrogen atom, a methyl group, or an ethyl group, and a sum of the number of carbon atoms of the chemical group represented by Rand the number of carbon atoms of the chemical group represented by Ris 2. Rand Reach represent, independently of one another, a hydrogen atom, a methyl group, or an ethyl group, and a sum of the number of carbon atoms of the chemical group represented by Rand the number of carbon atoms of the chemical group represented by Ris 2. A photosensitive layer of an electrophotographic photosensitive member contains at least a charge generating material, a hole transport material, and a binder resin. The hole transport material includes a compound represented by general formula (1) 

Terphenyl compound, electrophotographic photosensitive member, and method for producing terphenyl compound

A bis-butadiene derivative is represented by general formula (1) shown below. In general formula (1), Ra, Rb, and Rc each represent, independently of one another, an alkyl group having a carbon number of at least 1 and no greater than 8 or an alkoxy group having a carbon number of at least 1 and no greater than 8. l and m each represent, independently of one another, an integer of at least 0 and no greater than 5. n represents an integer of at least 0 and no greater than 4. Chemical groups Ra may be the same as or different from each other. Chemical groups Rb may be the same as or different from each other. Chemical groups Rc may be the same as or different from each other.

Bis-butadiene derivative and electrophotographic photosensitive member

An electrophotographic photosensitive member includes a conductive substrate and a photosensitive layer. The photosensitive layer includes a charge generating layer and a charge transport layer. The charge generating layer contains a charge generating material. The charge transport layer contains a hole transport material and a binder resin. The charge transport layer further contains an electron acceptor compound. The hole transport material includes a compound represented by general formula (1). In general formula (1), R, R, R, R, R, R, R, R, R, and Reach represent, independently of one another, a hydrogen atom or a methyl group. 

Electrophotographic photosensitive member

A quinone derivative is represented by general formula (1), (2), or (3). In general formulae (1), (2), and (3), R, R, R, R, R, R, R, R, R, R, R, and Reach represent, independently of one another, a hydrogen atom, a cyano group, a halogen atom, an optionally substituted alkyl group having a carbon number of 1-6, or an optionally substituted alkoxy group having a carbon number of 1-6. R, R, R, R, R, and Reach represent, independently of one another, an optionally substituted alkyl group having a carbon number of 1-6, an optionally substituted alkoxy group having a carbon number of 1-6, an optionally substituted aryl group having a carbon number of 6-14, an optionally substituted aralkyl group having a carbon number of 7-12, or an optionally substituted cycloalkyl group having a carbon number of 3-10. 

Quinone derivative and electrophotographic photosensitive member

A triarylamine derivative represented by general formula (1) below. In the general formula (1), R, R, R, R, R, R, R, and Reach represent, independently from one another, a hydrogen atom, an optionally substitute alkyl group having a carbon number of at least 1 and no greater than 6, an optionally substituted alkoxy group having a carbon number of at least 1 and no greater than 6, or an optionally substituted aryl group having a carbon number of at least 6 and no greater than 14, Rrepresents an alkyl group having a carbon number of at least 1 and no greater than 4, X represents an alkylene group having a carbon number of at least 1 and no greater than 6 or an oxygen atom, and n represents an integer of 1 to 3. 

Triarylamine derivative, electrophotographic photosensitive member, and method for producing electrophotographic photosensitive member

A quinone derivative represented by general formula (1) where, in the general formula (1), chemical groups Reach represent, independently of one another, an alkyl group, a cycloalkyl group, an alkoxy group, an aralkyl group, or an aryl group, and Rrepresents an alkyl group, an aralkyl group, a cycloalkyl group, an alkoxy group, an aryl group, or a heterocyclic group. 

A quinone derivative represented by general formula (1), where, in the general formula (1), Rand Reach represent, independently of one another, an alkyl group, a cycloalkyl group, an alkoxy group, an aralkyl group, or an aryl group, Rrepresents a halogen atom, an alkyl group, an alkoxy group, or an aryl group, m represents an integer of no less than 0 and no greater than 4, and when m represents an integer of no less than 2, chemical groups Rmay be the same as or different from one another.

A triarylamine derivative is represented by general formula (I). In general formula (I), Rand Reach represent, independently of one another, a chemical group selected from the group consisting of a halogen atom, an optionally substituted alkyl group having a carbon number of 1-6, an optionally substituted alkoxy group having a carbon number of 1-6, and an optionally substituted aryl group having a carbon number of 6-12. In general formula (I), k and l each represent an integer of at least 0 and no greater than 4. When k and l represent integers greater than 1, chemical groups Rbonded to the same aromatic ring and chemical groups Rbonded to the same aromatic ring may be the same or different to one another. In general formula (I), m and n each represent a different integer of at least 1 and no greater than 3. 

Triarylamine derivative, electrophotographic photosensitive member, and image forming apparatus

A triphenylamine derivative is represented by general formula (1). In general formula (1), Rto Reach represent, independently of one another, a chemical group selected from the group consisting of a halogen atom, an optionally substituted alkyl group having a carbon number of at least 1 and no greater than 6, an optionally substituted alkoxy group having a carbon number of at least 1 and no greater than 6, and an optionally substituted aryl group having a carbon number of at least 6 and no greater than 12. Also, k, l, m, n, o, and p each represent, independently of one another, an integer of at least 0 and no greater than 4. When any of k, l, m, n, o, or p represents an integer greater than 1, chemical groups R, R, R, R, or Rbonded to the same aromatic ring may be the same or different. 

Triphenylamine derivative, electrophotographic photosensitive member, and image forming apparatus

An electrophotographic photosensitive member includes a photosensitive layer containing a charge generating material, a charge transport material, and a binder resin. The photosensitive layer is a multi-layer type photosensitive layer or a single-layer type photosensitive layer. The multi-layer type photosensitive layer includes a charge generating layer that contains the charge generating material and a charge transport layer that contains the charge transport material and the binder resin, and in which the charge transport layer is located on the charge generating layer. The single-layer type photosensitive layer contains the charge generating material, the charge transport material, and the binder resin. The charge transport material is an enamine derivative represented by general formula (1). In general formula (1), R, R, l, m, and n are each as defined in the specification. 

A triarylamine derivative is represented by general formula (1) shown below.  In general formula (1), each Rindependently represents a halogen atom, an optionally substituted alkyl group having a carbon number of 1-6, an optionally substituted alkoxy group having a carbon number of 1-6, or an optionally substituted aryl group having a carbon number of 6-12. Each k independently represents an integer of 0-4, and each m independently represents an integer of 1-3. Each Rindependently represents a halogen atom, an optionally substituted alkyl group having a carbon number of 1-6, an optionally substituted alkoxy group having a carbon number of 1-6, or an optionally substituted aryl group having a carbon number of 6-12. Each p independently represents an integer of 0-4.

Triarylamine derivative and electrophotographic photosensitive member

A hydrazone derivative of triphenylamine is represented by general formula (1). In general formula (1), Rand Reach represent, independently of one another, at least one chemical group selected from the group consisting of a halogen atom, an optionally substituted alkyl group having a carbon number of at least 1 and no greater than 6, an optionally substituted alkoxy group having a carbon number of at least 1 and no greater than 6, and an optionally substituted aryl group having a carbon number of at least 6 and no greater than 12. In general formula (1), m and n each represent, independently of one another, an integer of at least 0 and no greater than 4. In general formula (1), 1 represents 0 or 1.

Hydrazone derivative of triphenylamine and electrophotographic photosensitive member

A triarylamine derivative is represented by general formula (1) shown below.  In general formula (1), R, R, and Reach represent, independently of one another, a halogen atom, an optionally substituted alkyl group having a carbon number of at least 1 and no greater than 6, an optionally substituted alkoxy group having a carbon number of at least 1 and no greater than 6, or an optionally substituted aryl group having a carbon number of at least 6 and no greater than 12. In general formula (1), o, p, and q each represent, independently of one another, an integer of at least 0 and no greater than 4, and m and n each represent, independently of one another, an integer of at least 1 and no greater than 2.

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Kensuke Kojima