Sharp Kabushiki Kaisha Corporation

Hiroshi Sugimura

Satoshi Katayama

Akihiro Kondoh

Takatsugu Obata

Yoshimi Kojima

Koichi Toriyama

Satoshi Nishigaki

Eiji Imada

Masanori Matsumoto

Shuhei Tsuchimoto

Kazuhiro Emoto

Shintaro Miyanishi

Kazushige Morita

Yoshihide Shimoda

Akiko Kihara

Yoshimasa Fujita

Mikio Kakui

Masayuki Sakamoto

Tomoko Kanazawa

Rikiya Matsuo

Tatsuhiro Morita

Mami Adachi

Kenichi Nagata

Hisayuki Utsumi

Kotaro Fukushima

Shinya Mimura

Akihiro Kondo

Kiyoto Motoyama

Yohichi Takesawa

Yuko Takeda

Yuko Inoue

Jun Sugita

A solar battery cell, comprises a substrate; a first electrode provided on the substrate; a photoelectric conversion layer provided on the first electrode; a second electrode provided on the photoelectric conversion layer; and a barrier layer so provided as to cover a side portion of the photoelectric conversion layer, wherein the photoelectric conversion layer has an electron transport layer, a light absorption layer provided on the electron transport layer, and a hole transport layer provided on the light absorption layer, the light absorption layer includes a compound having a perovskite crystal structure, and the barrier layer is a dense inorganic material layer.

Solar battery cell, solar battery, solar battery module, and solar battery array

A hybrid particle according to the present invention includes an inorganic core particle, an electron transport layer covering a surface of the inorganic core particle, and a light absorption layer covering the electron transport layer. The light absorption layer contains a compound having an organic-inorganic hybrid perovskite crystal structure or a metal complex. The compound or the metal complex is grown in a crystalline form on a surface of the electron transport layer.

Hybrid particle, photoelectric conversion element, photosensitive body, and image forming apparatus

A method for producing a photoelectric conversion element includes forming a hole transport layer containing a hole transport material by causing the hole transport material to adhere to one of a light-absorbing layer and a conductive layer; melting the hole transport layer by heating the hole transport layer to a temperature that is higher than or equal to a melting point of the hole transport material and is in a range of 120&#xb0; C. or higher and 170&#xb0; C. or lower; and bonding the light-absorbing layer and the conductive layer with the hole transport layer disposed therebetween by performing cooling while bringing the other of the light-absorbing layer and the conductive layer into contact with the melted hole transport layer under pressure. The light-absorbing layer contains a compound represented by general formula (1), where A represents an organic molecule, B represents a metal atom, and X represents a halogen atom.ABX&#x2003;&#x2003;(1)

Method for producing photoelectric conversion element

The purpose of the present invention is to provide an easy-to-manufacture organic-inorganic hybrid photoelectric conversion element having high photoelectric conversion efficiency and excellent durability. A photoelectric conversion elementfurther comprises a closely packed titanium oxide layer, a porous titanium oxide layer, an organic-inorganic hybrid crystal layer, and a hole transport layerbetween a first conductive layerand a second conductive layer, wherein the hole transport layercomprises a compound with the following structure (I): where Rto Rare each the same or different and represent hydrogen atom, substituted or unsubstituted alkyl group, substituted or unsubstituted alkylamino group, substituted or unsubstituted arylamino group, or substituted or unsubstituted alkoxy group, provided that a case in which all of the Rto Rare hydrogen atom is excluded; and m, n, o, and p are each the same or different and represent an integer of 1 to 5, provided that when any of the m, n, o, and p is an integer of 2 or more, the corresponding R groups may each be the same or different.

Photoelectric conversion element and method for manufacturing the same

A rotation driving force transmitting member is disposed between a motor section and a main body of a photoreceptor drum. The rotation driving force transmitting member has a convex member which is provided on the photoreceptor drum side and includes a twisted convex portion with an elliptical cross-section and a concave member which is provided on the motor section side and includes a twisted concave portion with an elliptical cross-section, the concave portion being fitted in the convex portion. The rotation driving force transmitting member transmits rotation driving force by the motor section to the photoreceptor drum via the convex member and the concave member in a state where the convex member is subjected to a drawing force toward the concave member side, due to rotation of the motor section in a state where the convex portion and the concave portion are fitted in each other.

Rotation driving force transmitting member, photoreceptor drum, process cartridge, and image forming apparatus

An electrophotographic photoconductor of the invention comprising: an conductive support; a light-sensitive layer formed on the conductive support and containing a charge generating material and a charge transport material; and a surface protective layer formed on the light-sensitive layer and made of a resin composition, wherein the resin composition constituting the surface protective layer contains an amine compound represented by the following formula (1):  wherein R1 and R2 are, the same or different, each an alkyl group or an allyl group which may have a substituent or a heterocyclic residue to be formed through or not through a nitrogen atom or an oxygen atom together with the nitrogen atom to which R1 and R2 are bonded, R3 and R4 are, the same or different, each an alkyl group having a substituent and n denotes 1 or 2, provided that when n is 1, X is a hydrogen atom, a halogen atom, or an alkyl group, a hydroxyl group or a mercapto group which may have a substituent, or a ring optionally containing an oxygen atom and a nitrogen atom between carbon atoms and when n is 2, X is an oxygen atom or a sulfur atom.

Electrophotographic photoconductor, method of producing the same and image forming apparatus

An electrophotographic photoconductor containing at least a charge generation material and a charge transport material on a conductive support, the electrophotographic photoconductor comprising a diamine compound represented by the formula (1), and also a polyarylate resin having a structural unit represented by the following formula (I). 

Electrophotographic photoconductor and image forming apparatus provided with the same

An electrophotographic photoreceptor comprising: a conductive support, a photosensitive layer and an intermediate layer interposed between the conductive support and the photosensitive layer, wherein the intermediate layer contains metal oxide microparticles surface-treated with silicon dioxide anhydride and a binder resin; and the binder resin contains a polyamide resin containing a piperazine-based compound.

Electrophotographic photoreceptor and image forming apparatus provided with the same

In an electrophotographic photoreceptor including a conductive substrate and a single layer type photosensitive layer, the aromatic polycarbonate is contained to a single layer type photosensitive layer, which aromatic polycarbonate includes a constituent unit represented by the following general formula (1) derived from a compound having a basic asymmetric bishydroxy enamine skeleton represented by the general formula: Accordingly, the electrophotographic photoreceptor is obtained which is excellent in charge transportability, mechanical strength, electric property, durability, etc. and can form good images for a long time.

Aromatic polycarbonate, electrophotographic photoreceptor, and image forming apparatus

An electrophotographic photoreceptor of high durability capable of providing stable excellent electrical characteristics over a prolonged period of time, which electrophotographic photoreceptor excels in mechanical strength. A photosensitive layer () of an electrophotographic photoreceptor () includes a polyarylate resin having structural units, for example, those of formula (1) and an enamine compound represented by, for example, formula (2) The variables R, R, R, R, R&#x2dc;R, X, Ar, Ar, Ar, Ar, Ar, R, R, R, R, a, m, and n are as defined in the specification. By virtue of these, the electrophotographic photoreceptor () of excellent mechanical strength and favorable electrical characteristics can be realized.

Electrophotographic photoreceptor and image forming apparatus including the same

An organic photoconductive material which is useful as a raw material compound for a variety of functional materials and makes it possible to implement an electrophotoconductor which is excellent in terms of the charge transporting performance, excellent in terms of dissolution in solvents and compatibility with resins, and excellent in terms of both the electrical properties and durability is provided. An example is an asymmetric bishydroxy compound which can be represented by the following structural formula (1aa). This compound is contained in a charge transforming layeror a surface protective layerof an electrophotoconductor. As a result, an electrophotoconductorwhich is excellent in terms of the electrical properties and durability and can stably form high quality images without image defects such as black dots can be implemented. 

Electrophotoconductor and image forming apparatus

There is provided an organic photoconductive material that can realize an electrophotographic photoreceptor which is not only excellent in charge transporting ability but also excellent in solubility in a solvent and compatibility with a resin and moreover, which is excellent in both electric properties and durability, and the organic photoconductive material that is useful also as a raw material compound for various types of functional materials. An asymmetric bis-hydroxyenamine compound represented by the following structural formula (1aa) is provided. The compound is allowed to be contained in a charge transporting layer or a surface protective layer of an electrophotographic photoreceptor. This leads realization of the electrophotographic photoreceptor which is excellent in electric properties and durability and can stably form an image of high quality being free of an image defect such as a black spot. 

Asymmetric bis-hydroxyenamine compound, electrophotographic photoreceptor and image forming apparatus

The invention provides an electrophotographic photoreceptor capable of producing high quality images even when development is carried out under low electric potential conditions, and also provides an image forming device incorporating such an electrophotographic photoreceptor. In a photosensitive layerof a photoreceptorthe mobility of electric charges is 2&#xd7;10cm/(V&#xb7;s) or greater at an electric field intensity E of 1&#xd7;10V/cm. Further, the slope &#x3b1;in equation 1 representing the mobility of electric charges is 5&#xd7;10or less in an electric field range of 5&#xd7;10&#x3c;E&#x3c;1&#xd7;10.

Electrophotographic photoreceptor having defined mobility of electric charges in photosensitive layer and image forming device incorporating same

A vibration insulating member fitting method includes the steps of: positioning and wrapping a sheet-like vibration insulating memberaround a shafthaving an air suction/exhaust portion; holding the sheet-like vibration insulating memberonto the shaftby air suction; and inserting the shaftthat sucks the sheet-like vibration insulating memberby the air suction into a hollow cylinderof a photosensitive drumto stop the air suction, causing the sheet-like vibration insulating memberto be tightly fitted onto the inner wall surface of the photosensitive drumby a restoring force of the sheet-like vibration insulating member. A vibration insulating member recovering method includes the steps of: inserting a shafthaving an air suction portion into a sheet-like vibration insulating memberfitted on an inner wall surface of a hollow cylinderof a photosensitive drum; starting air suction to suck and hold the sheet-like vibration insulating memberonto the shaft; detaching the sheet-like vibration insulating memberfrom the inner wall surface of the hollow cylinderof the photosensitive drum; and taking the shaftout of the hollow cylinderof the photosensitive drum, with the sheet-like vibration insulating memberbeing sucked and held on the shaft

VIBRATION INSULATING MEMBER FITTING METHOD, VIBRATION INSULATING MEMBER FITTING DEVICE, VIBRATION INSULATING MEMBER, VIBRATION INSULATING MEMBER RECOVERING METHOD, AND VIBRATION INSULATING MEMBER RECOVERING DEVICE

Growing community of inventors

Habikino, Japan

Hiroshi Sugimura