US4075825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic timepiece substratum
Assignee: Citizen Watch Co Ltd
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Filing: 1975-06-30
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Granted: 1978-02-28
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Expires: 1995-06-30
Abstract
Abstract A watch body for an electronic watch containing an integrated circuit chip and a printed circuit board is disclosed. The watch body comprises an upper case and a bottom cover which are selectively interconnected one with the other. A lead package frame is sandwiched between the upper case and the bottom cover and contains a plurality of electrical leads disposed thereon and electrically coupled to the integrated circuit chip. The lead frame has first and second sides with the first side having a first cavity with the integrated circuit chip matingly engaged therein. The plurality of leads are disposed on the first side of the lead frame so as to surround this first cavity down the circuit chip. The second side of the lead frame has a second cavity with the printed circuit board disposed therein. By the use of the watch body of the instant invention, a significantly smaller number of components, a simpler manufacturing process is achieved.
Inventors
- 👤 Tomomi Murakami
- 👤 Masaru Yoshida
- 👤 Satoshi Kimura
- 👤 Tetuya Yasuda
- 👤 Yoshio Iinuma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:23
CPC Classifications
G; G04; G04G; G04G17/00; G04G17/02
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
133 words
A watch body for an electronic watch comprising: a. an upper case and a bottom watch cover, said upper case and bottom cover each containing means for selectively interlocking one with the other thereby forming a discrete watch body; b. a lead package frame sandwiched between said upper case and said bottom cover, said lead frame having first and second sides, said first side having a first cavity disposed therein arranged and configured to receive an integrated circuit chip, and said second side of said lead frame arranged and configured to detachably engage a printed circuit board; and c. a liquid crystal cell disposed in an associated holder member such that said liquid crystal cell is adjacent said first cavity on said lead frame, said holder member extending downward from said lead frame.
Claim 2
Dependent Claim
133 words
A watch body for an electronic watch comprising: a. an upper case and a bottom watch cover, said upper case and bottom cover each containing means for selectively interlocking one with the other thereby forming a discrete watch body; b. a lead package frame sandwiched between said upper case and said bottom cover, said lead frame having first and second sides, said first side having a first cavity disposed therein arranged and configured to receive an integrated circuit chip, and said second side of said lead frame arranged and configured to detachably engage a printed circuit board; and c. a liquid crystal cell disposed in an associated holder member such that said liquid crystal cell is adjacent said first cavity on said lead frame, said holder member extending downward from said lead frame.
Claim 3
Dependent Claim
26 words
The watch body according to claim 1 wherein said lead package frame has a generally circular configuration with said first cavity disposed in said holder member.
Claim 4
Dependent Claim
21 words
The watch body according to claim 2 wherein said holder member has an arcuous top section joined to two spaced-apart legs.
Claim 5
Dependent Claim
24 words
The watch body according to claim 3 wherein the interior of said upper case is arranged and configured to selectively engage said holder member.
Claim 6
Dependent Claim
56 words
The watch body according to claim 1 wherein said lead package frame has a downward-extending interconnector member, said interconnector member electrically coupled to a predetermined number of said leads and arranged and configured to matingly engage said liquid crystal cell such that said liquid crystal cell is electrically coupled to a predetermined number of said leads.
Claim 7
Dependent Claim
167 words
A watch body for an electronic watch comprising: a. an upper watch case and a bottom watch cover, said upper case and bottom cover each containing means for selectively interlocking one with the other thereby forming a discrete watch body; b. a lead package frame sandwiched between said upper case and said bottom cover, said lead frame containing a plurality of electrical leads disposed thereon electrically coupled to an integrated chip, said lead frame having first and second sides, said first side having a first cavity disposed therein arranged and configured to receive said integrated circuit chip, said plurality of leads disposed on said first side of said lead frame so as to surround said first cavity, and said second side of said lead frame having a second cavity arranged and configured to detachably engage a printed circuit board; and c. a liquid crystal cell disposed in said lead frame adjacent said first cavity, said liquid crystal cell electrically coupled to a predetermined number of said leads.
Claim 8
Dependent Claim
167 words
A watch body for an electronic watch comprising: a. an upper watch case and a bottom watch cover, said upper case and bottom cover each containing means for selectively interlocking one with the other thereby forming a discrete watch body; b. a lead package frame sandwiched between said upper case and said bottom cover, said lead frame containing a plurality of electrical leads disposed thereon electrically coupled to an integrated chip, said lead frame having first and second sides, said first side having a first cavity disposed therein arranged and configured to receive said integrated circuit chip, said plurality of leads disposed on said first side of said lead frame so as to surround said first cavity, and said second side of said lead frame having a second cavity arranged and configured to detachably engage a printed circuit board; and c. a liquid crystal cell disposed in said lead frame adjacent said first cavity, said liquid crystal cell electrically coupled to a predetermined number of said leads.
Claim 9
Dependent Claim
34 words
The watch body according to claim 6 wherein said liquid crystal cell is disposed in a holder member, said holder member attached to said first side of said lead frame and extending downward therefrom.
Claim 10
Dependent Claim
47 words
The watch body according to claim 6 wherein said lead package frame has a generally circular configuration with said first cavity disposed in a downward-extending holder member disposed on said first side of said lead frame, and said liquid crystal cell being retained in said holder member.
Claim 11
Dependent Claim
22 words
The watch body according to claim 8 wherein said downward-extending holder member has an arcuous top section joined to two spaced-apart legs.
Claim 12
Dependent Claim
25 words
The watch body according to claim 9 wherein the interior of said upper case is arranged and configured to selectively engage said downward-extending holder member.
Claim 13
Dependent Claim
59 words
The watch body according to claim 6 wherein said lead package frame has at least one downward-extending interconnector member, each said interconnector member electrically coupled to a predetermined number of said leads and arranged and configured to matingly engage said liquid crystal cell such that said liquid crystal cell is electrically coupled to a predetermined number of said leads.
Claim 14
Dependent Claim
24 words
The watch body according to claim 11 wherein two said interconnector members are disposed in said lead frame in a generally parallel, spaced-apart configuration.
Claim 15
Dependent Claim
23 words
The watch body according to claim 11 wherein said interconnector member is made of alternating downward-extending sections of conductive sections and nonconductive sections.
Claim 16
Dependent Claim
15 words
The watch body according to claim 13 wherein said nonconductive sections are made of rubber.
Claim 17
Dependent Claim
13 words
The watch body according to claim 6 wherein said attaching means are screws.
Claim 18
Dependent Claim
26 words
The watch body according to claim 15 wherein said screws are disposed through said printed circuit board and thereby couple said board to said lead frame.
Claim 19
Dependent Claim
197 words
A watch body for an electronic watch containing an integrated circuit chip and a printed circuit board comprising: a. an upper watch case and a bottom watch cover, said upper case and said lower cover selectively interconnected; b. a lead package frame sandwiched between said upper case and said bottom cover, said lead frame containing a plurality of electrical leads disposed thereon electrically coupled to said integrated circuit chip said lead frame having first and second sides, said first side having a first cavity with said integrated circuit chip matingly engaged therein, said plurality of leads disposed on said first side of said lead frame so as to surround said first cavity and said circuit chip, sand second side of said lead frame having a second cavity with said printed circuit board detachably disposed therein, said lead frame having selected openings disposed therethrough adjacent a predetermined number of said leads such that said leads engage said circuit board and electrically couple said circuit board to said integrated circuit chip; and c. a liquid crystal cell disposed in said lead frame adjacent said first cavity, said liquid crystal cell electrically coupled to a predetermined number of said leads.
Claim 20
Dependent Claim
197 words
A watch body for an electronic watch containing an integrated circuit chip and a printed circuit board comprising: a. an upper watch case and a bottom watch cover, said upper case and said lower cover selectively interconnected; b. a lead package frame sandwiched between said upper case and said bottom cover, said lead frame containing a plurality of electrical leads disposed thereon electrically coupled to said integrated circuit chip said lead frame having first and second sides, said first side having a first cavity with said integrated circuit chip matingly engaged therein, said plurality of leads disposed on said first side of said lead frame so as to surround said first cavity and said circuit chip, sand second side of said lead frame having a second cavity with said printed circuit board detachably disposed therein, said lead frame having selected openings disposed therethrough adjacent a predetermined number of said leads such that said leads engage said circuit board and electrically couple said circuit board to said integrated circuit chip; and c. a liquid crystal cell disposed in said lead frame adjacent said first cavity, said liquid crystal cell electrically coupled to a predetermined number of said leads.
Claim 21
Dependent Claim
59 words
The watch body according to claim 17 wherein said lead package frame has at least one downward-extending interconnector member, each said interconnector member electrically coupled to a predetermined number of said leads and arranged and configured to matingly engage said liquid crystal cell such that said liquid crystal cell is electrically coupled to a predetermined number of said leads.
Claim 22
Dependent Claim
24 words
The watch body according to claim 18 wherein two said interconnector members are disposed in said lead frame in a generally parallel, spaced-apart configuration.
Claim 23
Dependent Claim
23 words
The watch body according to claim 18 wherein said interconnector member is made of alternating downward-extending sections of conductive sections and nonconductive sections.
Claim 24
Dependent Claim
21 words
The watch body according to claim 13 wherein the leads are insert molded to become said lead package frame with plastic.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-27 | 1981-08-29 | 1982-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-27 | 1985-08-29 | 1986-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-27 | 1989-08-29 | 1990-02-28 | $7700.00 | Window Closed / Lapsed |