公开(公告)号：US20190077144A1

公开(公告)日：2019-03-14

申请号：US16118186

申请日：2018-08-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHUHEI NAKATANI ,  FUTOSHI OHTSUKA ,  YOUSUKE TOYOFUKU

IPC: B41J2/045 ,  B41J2/145

CPC classification number: B41J2/04541 ,  B41J2/04581 ,  B41J2/14274 ,  B41J2/145 ,  B41J2202/12

Abstract: An object of the disclosure is to provide an inkjet head that makes it possible to realize alleviation of ink-discharge malfunction due to fluid crosstalk possibly caused among multiple discharge components, and that also simultaneously makes it possible to maintain a desirable volume of discharged liquid droplets. Furthermore, another object of the disclosure is to provide an inkjet device including the inkjet head.

公开(公告)号：US20180222180A1

公开(公告)日：2018-08-09

申请号：US15886811

申请日：2018-02-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENTARO KUMAZAWA ,  SHUHEI NAKATANI ,  TAKAO NAGUMO ,  TAKASHI INOUE ,  FUTOSHI OHTSUKA

IPC: B41J2/045 ,  B41J29/393 ,  B41J2/135

CPC classification number: B41J2/04526 ,  B41J2/04503 ,  B41J2/04556 ,  B41J2/04586 ,  B41J2/135 ,  B41J2/2135 ,  B41J11/0035 ,  B41J11/0095 ,  B41J19/145 ,  B41J29/393 ,  B41J2202/01

Abstract: A high precision printing method taking into consideration the variance in the thickness of a printing target. An ink-jet printing method, including: (i) measuring a distance between a printing target and at least one nozzle; (ii) measuring a flying speed and a flying angle of an ink(a) discharged from the at least one nozzle; (iii) printing a test substrate with an ink to identify a location on which an ink(b) is spotted, and calculating a thickness-related displacement that is a displacement from the location on which the ink is spotted, based on a thickness difference between the printing target and the test substrate from results obtained in Step (i), and the flying speed and the flying angle of the ink(a) obtained in Step (ii); and (iv) discharging an ink(c) from the at least one nozzle to achieve actual printing of the printing target with the ink(c) while correcting the thickness-related displacement.

公开(公告)号：US20210291521A1

公开(公告)日：2021-09-23

申请号：US17194416

申请日：2021-03-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KAZUNOBU IRIE ,  HIDEHIRO YOSHIDA ,  SHUHEI NAKATANI ,  FUTOSHI OHTSUKA ,  YOUSUKE TOYOFUKU

IPC: B41J2/14 ,  B41J2/045 ,  B41J2/175

Abstract: An ink jet head includes a piezoelectric element that is driven in a d33 mode, a pressure generation chamber in which a pressure is generated by the piezoelectric element, and an individual ink supply flow passage that through which the ink is supplied to the pressure generation chamber. The ink jet head includes an individual ink discharge flow passage that through which the ink is discharged from the pressure generation chamber, and a nozzle that ejects the ink from the pressure generation chamber. In a cross-sectional view in a direction orthogonal to an arrangement direction of the nozzle, inner diameters of the pressure generation chamber, the individual ink supply flow passage, and the individual ink discharge flow passage are shorter on a part close to the nozzle than a part close to the piezoelectric element side. Accordingly, an ink jet head capable of ejecting high-viscosity ink can be provided.

公开(公告)号：US20230311509A1

公开(公告)日：2023-10-05

申请号：US18183096

申请日：2023-03-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENTARO KUMAZAWA ,  SHUHEI NAKATANI ,  KAZUNOBU IRIE ,  FUTOSHI OHTSUKA ,  YOUSUKE TOYOFUKU

IPC: B41J2/14 ,  B41J2/16

CPC classification number: B41J2/1433 ,  B41J2/14233 ,  B41J2/14274 ,  B41J2/162 ,  B41J2/1607 ,  B41J2/1623 ,  B41J2002/14258

Abstract: A coating head includes: a plurality of nozzles; a plurality of pressure chambers communicating with the plurality of nozzles; an ink flow path communicating with the plurality of pressure chambers; and a coating layer that is at least partially provided on liquid contact surfaces of the plurality of nozzles, the plurality of pressure chambers, and the ink flow path.

公开(公告)号：US20200179919A1

公开(公告)日：2020-06-11

申请号：US16790562

申请日：2020-02-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENICHI YAMAMOTO ,  TOHRU NAKAGAWA ,  HIDEHIRO YOSHIDA ,  FUTOSHI OHTSUKA

IPC: B01L3/02 ,  B01L3/00

Abstract: A liquid discharge device includes a nozzle from which liquid drops are discharged, a fixing part for fixing the nozzle, and a driving part generating displacement, in which the nozzle is fixed to a first holding part in the driving part and a second holding part in the fixing part.