Kabushikikaisya Kotobuki

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E04H BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL 327
 
  
 
A47C CHAIRS 152

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5819475 Turning up and down apparatus for telescopic tiered spectator's seatsSep 27, 96Oct 13, 98[E04H]
5803546 Turning mechanism for chair seatJan 07, 97Sep 08, 98[A47C]
5517789 Variable floor height telescopic multi-staged spectator seating systemOct 21, 94May 21, 96[E04H]
5228246 Apparatus for turning up an down seats for telescopic seating systemApr 18, 91Jul 20, 93[E04H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6243991 Variable floor height tiered standExpiredMar 28, 00Jun 12, 01[E04H]
6244657 Seat erecting/folding structure for movable spectators' standExpiredOct 27, 99Jun 12, 01[A47C]
D370791 Folding chair unitExpiredJun 07, 95Jun 18, 96[]
D352400 Folding chair unitExpiredDec 21, 92Nov 15, 94[]
5324093 Apparatus for setting operative attitude of furnitures in furniture raising/lowering type floor equipmentExpiredDec 26, 91Jun 28, 94[A47C]
5271190 Apparatus for opening and closing covering means for furniture raising/lowering type floor equipmentExpiredFeb 11, 93Dec 21, 93[E04H]
5245799 Apparatus for opening and closing covering means for furniture raising/lowering type floor equipmentExpiredNov 27, 91Sep 21, 93[E04H]
5228744 Apparatus for locking operative position of each furniture on furniture raising/lowering type floor equipmentExpiredDec 26, 91Jul 20, 93[A47C]
5087096 Apparatus for displacing extensible/contractible board for chair in case of emergencyExpiredApr 18, 90Feb 11, 92[A47C]
4854640 Apparatus for raising seat of chairExpiredMar 14, 88Aug 08, 89[A47C]
4714365 Mechanical pencilExpiredMar 14, 86Dec 22, 87[B43K]
4702043 Apparatus for turning up and down seats for a telescopic seating systemExpiredAug 14, 86Oct 27, 87[E04H]
4583874 Knock-type propelling pencil with storage cartridgeExpiredDec 13, 82Apr 22, 86[B43K]
4569162 Apparatus for turning up and down seats for a telescopic seating systemExpiredOct 09, 84Feb 11, 86[E04H]

Top Inventors for This Owner

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