LexDanaLexDanabeta
Inventor

Hitoshi Iwatsuki

Inventor
Shizuoka, JP

Overview

46→
Patents
2008–2021
Patent span
Physics
Primary field (CPC G)

Patents· 46 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Gprimary
G03GElectrography38%
B29CShaping or joining of plastics9%
B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering9%
B22FWorking metallic powder5%
Y02PClimate change mitigation technologies in the production or processing of goods5%
B29BPreparation or pretreatment of the material to be shaped4%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts4%
C09DCoating compositions, e.g. paints, varnishes or lacquers4%
C04BLime, magnesia3%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients3%
PatentTitleYear
11,066,758Resin powder having pillar shape and specific circularity for solid freeform fabrication, device for solid freeform fabrication object, and method of manufacturing solid freeform fabrication object202111,052,649Resin powder for solid freeform fabrication, device for fabricating solid freeform fabrication object, and resin powder202111,045,978Particle for solid freeform fabrication, powder for solid freeform fabrication, device for manufacturing solid freeform fabrication object, method of manufacturing solid freeform fabrication object, and particle202110,800,096Resin powder for solid freeform fabrication and device for solid freeform fabrication object202010,682,808Three-dimensional object fabrication method, fabrication apparatus, and fabrication system202010,233,110Material set for manufacturing glass object, liquid material for manufacturing glass object, method of manufacturing glass object, glass object, and device for manufacturing glass object201910,197,948Developing device and image forming apparatus201910,067,438Electrostatic latent image developing white developer, image forming method, image forming apparatus, and process cartridge201810,030,154Powder material for three-dimensional modeling, material set for 3D modeling, method of manufacturing three-dimensional object, device for manufacturing three-dimensional object, and three-dimensional object20189,873,228Powder material for three dimensional modeling, kit for three dimensional modeling, green body for three dimensional modeling, method of manufacturing three dimensional object, method of manufacturing three-dimensional green body, device for manufacturing three-dimensional object, and device for manufacturing three-dimensional green body20189,782,935'Powder material for three-dimensional modeling, kit for three-dimensional modeling, device for manufacturing three-dimensional object, and method of manufacturing three-dimensional object'20179,708,502'Powder for 3D modeling, set for 3D modeling, method of manufacturing 3D object, and device for manufacturing 3D object'20179,519,234'Carrier, two-component developer, supplemental developer, image forming method, process cartridge and image forming apparatus'20169,304,427'Carrier for developing an electrostatic latent image, developer and image forming apparatus'20169,298,119'Carrier for two-component developer, two-component developer using the carrier, and image forming method and process cartridge using the two-component developer'20169,261,817'Replenishing developer housing container and image forming apparatus'20169,229,347'Carrier for two-component developer, two-component developer using the carrier, and process cartridge and image forming method and apparatus using the two component developer'20169,146,487'Carrier for developing electrostatic latent image, and electrostatic latent image developer'20159,029,061'Carrier, developer using the carrier, and developing device, image forming method, image forming apparatus and process cartridge using the developer'20158,918,025'Image forming method and image forming apparatus'20148,916,325'Carrier for developing electrostatic latent image, tow-component developer and image forming method'20148,903,270'Developing device, image forming apparatus, and process cartridge'20148,877,418'Developing method and image forming method'20148,778,587'Carrier for electrostatic latent image developer, electrostatic latent image developer formed of carrier and toner, and process cartridge using the developer'20148,663,892'Latent electrostatic image developing carrier, process cartridge and image forming apparatus'20148,652,738'Contact developing method, image forming apparatus, and process cartridge'20148,652,735'Carrier, developer, method of manufacturing carrier, developer container, image forming method, process cartridge, image forming apparatus, and supplemental developer'20148,518,626'Carrier, method for preparing the carrier, developer using the carrier, developer container, and image forming method and apparatus and process cartridge using the developer'20138,512,928'Carrier for developing electrostatic latent image, and two-component developer, supplemental developer, image forming apparatus, process cartridge, and image forming method using the carrier'20138,512,929'Latent electrostatic image developing carrier, two-component developer and image forming method'20138,481,239'Carrier for two-component developer'20138,475,989'Carrier, method for preparing the carrier, developer using the carrier, developer container, and image forming method and process cartridge using the developer'20138,431,312'Carrier, developer, and image forming method'20138,257,896'Carrier'20128,247,150'Carrier for developing electrostatic latent image, two-component developer, supplemental developer, process cartridge, and image forming method'20128,211,610'Carrier for use in developer developing electrostatic image, developer using the carrier, and image forming method and apparatus and process cartridge using the developer'20128,086,143'Image forming apparatus for use with carrier including a core and cover layer'20118,026,032'Carrier, supplemental developer, developer in image developer, developer feeding apparatus, image forming apparatus and process cartridge'20117,745,084'Toner, developer including the toner, and image forming method, image forming apparatus and process cartridge using the toner'20107,642,032'Toner, developer, image forming apparatus and image forming method'20107,592,116'Indium-containing carrier for electrophotography, developer using the same, and developer container'20097,566,521'Toner, developer, toner container, process cartridge, image forming apparatus, and image forming method'20097,553,598'Electrophotographic carrier, developer, developer container, process cartridge, image forming apparatus and image forming method'20097,527,908'Carrier, developer, developer container, image forming method and process cartridge'20097,381,513'Carrier, developer, image forming method and process cartridge for electrostatic image development'20087,318,989'Toner, developer, toner container, process cartridge, image forming apparatus, and image forming method'2008

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2008–2013Based in Numazu, JP· patent location history
2010Based in Yokohama, JP· patent location history
2011–2021Patents assigned to RICOH CO LTD (38)· patent assignee history
2011–2021Patents assigned to IWATSUKI HITOSHI (36)· patent assignee history
2012–2019Patents assigned to SAKATA KOICHI (22)· patent assignee history
2012–2019Patents assigned to TANO TOYOAKI (22)· patent assignee history
2013–2021Patents assigned to YAGUCHI SHIGENORI (18)· patent assignee history
2013–2019Based in Shizuoka, JP· patent location history
2020–2021Based in Kanagawa, JP· patent location history
2021Based in Yokohama-shi, Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD382011–2021
IWATSUKI HITOSHIself362011–2021
SAKATA KOICHI222012–2019
TANO TOYOAKI222012–2019
YAGUCHI SHIGENORI182013–2021
Locations
LocationPatentsSpan
Shizuoka, JP262013–2019
Numazu, JP142008–2013
Kanagawa, JP42020–2021
Yokohama-shi, Kanagawa, JP12021
Yokohama, JP12010