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Inventor

Takefumi Adachi

Inventor
Tokyo, JP

Overview

16→
Patents
1989–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 16 as inventor

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

G03Gprimary
G03GElectrography18%
B60NSeats specially adapted for vehicles14%
A44BButtons, pins, buckles, slide fasteners, or the like7%
A47CChairs7%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers7%
B68GMethods, equipment, or machines for use in upholstering7%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges7%
A47GHousehold or table equipment4%
B41JTypewriters4%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for4%
PatentTitleYear
10,820,719Skin-material fixing tool202010,758,060Cover material fastening clip202010,602,811Fastener stringer, slide fastener, and fastener stringer attachment structure202010,384,583Assist grip20198,851,436'Cup holder'20148,662,807'Fastener and structure for fastening a member to be fastened'20147,748,540'Pallet packing tool'20107,705,871'Optical writing device and image forming apparatus including the optical writing device that prevents scattered toner and powder dust from entering the optical writing device'20107,526,223'Heat exhausting structure and image forming apparatus'20097,317,885'Image forming apparatus mounted with an open and close unit'20087,222,471'Pallet packing method and pallet packing tool used in the method'20077,201,409'Retracting locking mechanism for operable unit in stop position'20077,024,129'Air exhaust device having resilient member for reducing noise, and image forming apparatus using the same air exhaust device'2006D0334771'Toner cartridge'1993D0325220'Toner resupplying container'19924,866,482'Image forming device for electrostatic recording apparatus having a slidable replacement holding case'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2010Patents assigned to RICOH KK (7)· patent assignee history
1989–2020Based in Tokyo, JP· patent location history
1992–1993Patents assigned to RICOH CO LTD (2)· patent assignee history
2006–2010Based in Kawaguchi, JP· patent location history
2007–2019Patents assigned to NIFCO INC (4)· patent assignee history
2007–2010Based in Saitama, JP· patent location history
2014Patents assigned to ADACHI TAKEFUMI (2)· patent assignee history
2014Based in Sagamihara, JP· patent location history
2019Based in Machida, JP· patent location history
2020Patents assigned to YKK CORP (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH KK71989–2010
NIFCO INC42007–2019
YKK CORP32020
ADACHI TAKEFUMIself22014
RICOH CO LTD21992–1993
Locations
LocationPatentsSpan
Tokyo, JP71989–2020
Saitama, JP32007–2010
Sagamihara, JP22014
Kawaguchi, JP22006–2010
Machida, JP12019